50 feet each dimensions of the rectangular dog park producing the greatest enclosed area given 200 feet of fencing.
For an area to be the maximum of any rectangle the difference in length and breadth must be minimal. So, in such case, the length must be ceil (perimeter / 4) and the breadth will be floor(perimeter /4). Hence the maximum area of a rectangle with a given perimeter is equal to ceil(perimeter/4) * floor(perimeter/4).
Let X be the length and Y be the width of the rectangle. 200 ft of fencing material, so the maximum perimeter is 200 ft. Therefore first equation can be, 2X + 2Y = 200 => X + Y = 100 => Y = 100 — X
Equation of area of rectangle =>
A = X×Y => A = X(100–X) => A = 100X — X^2
Differentiate with respect to X on both sides
A' = 100 — 2X
Critical point => 100 — 2X = 0 => 2X = 100, X = 50
So maximum area is generated when the length and width of the fence are 50 feet each, which makes it a square. In mathematical terms, the square can be considered a rectangle.
50 feet each dimensions of the rectangular dog park producing the greatest enclosed area given 200 feet of fencing.
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Find the value of csc for the angle 0 in standard position having 5,-12) on its terminal side
The cosecant of the angle is 0.2
How to determine the cosecant of the angle?From the question, we have the following parameters that can be used in our computation:
(5,-12)
This means that
(x, y) = (5,-12)
The csc(θ) is calculated as
csc(θ) = 1/x
Substitute the known values in the above equation, so, we have the following representation
csc(θ) = 1/5
Evaluate
csc(θ) = 0.2
Hence, the value of csc(θ) is 0.2
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Given the conditional statement ~p → q, which statement is logically equivalent?
p → ~q
~p → ~q
~q → ~p
~q → p
Answer:
~q → pStep-by-step explanation:
Given the conditional statement ~p → q, the statement logically equivalent is ~q → p.
sort these items into the order that you would use them in order to calculate the confidence interval for the mean.
The order of calculate the confidence interval for the mean are as follows:
1. Select sample stat
2. select desired confidence
3. determine margin of error
4. specify upper and lower limits
Now, According to the question:
The order of calculate the confidence interval for the mean are as follows:
1. Select sample stat
2. select desired confidence
3. determine margin of error
4. specify upper and lower limits
Let's know:
What is Confidence Interval?
A confidence interval gives an estimated range of values which is likely to include an unknown population parameter, the estimated range being calculated from a given set of sample data.
The common notation for the parameter in question is θ. Often, this parameter is the population mean μ , which is estimated through the sample mean bar x.
The level C of a confidence interval gives the probability that the interval produced by the method employed includes the true value of the parameter θ.
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7. Evaluate the expression below if a = 64,
b = 9, and c = 5
A. 19
B. 19/2
C. 49/4
D.49/2
The given expression can be simplified to get the value as 19. The correct option is (A).
What is an Algebraic expression?An algebraic expression can be obtained by doing mathematical operations on the variable and constant terms.
The variable part of an algebraic expression can never be added or subtracted from the constant part.
The given expression is as below,
[tex](12b - 2^{c}) /\sqrt[3]{a}[/tex]
Substitute a = 64, b = 9 and c = 5 to obtain the value as below,
⇒ (12 × 9 - 2⁵)/∛64
⇒ (108 - 32)/4
⇒ 76/4
⇒ 19
Hence, the value of the given expression is obtained as 19.
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The image of the complete problem is attached here.
A random sample of 30 male college students was selected, and their heights were
measured. The heights (in inches) are given below
(a) Complete the frequency distribution for the data. Make sure to enter your answers for
the relative frequency as decimals, rounded to the nearest tenth.
Height Frequency Relative Frequency
68
69
70
71
73
1244
70 7368
66 73 70 23 23 64
74
The decimal equivalent of the relative frequency, rounded to the closest tenth, is 1.
How does relative frequency work?The proportion of outcomes when a certain event occurs to all trials, not in a hypothetical sample space but in a real experiment, is known as the empirical probability, relative frequency, or experimental probability of an event.
Thirty male college students at random were chosen.
The following table lists their heights in inches. These heights are 12 44 70 73 68 66 73 70 23 23 64 74 and 68 69 70 71 73.
Therefore, the frequency of any height value in the data set is just its count. A value's relative frequency is simply the ratio of its corresponding frequency to the total frequency.
So, the frequency table is
Height(xi) Frequency(fi) Relative frequency
66 3 3/30=0.1
67 3 3/30=0.1
68 4 4/30=0.13
69 3 3/30=0.1
70 2 2/30=0.06
71 4 4/30=0.13
72 2 2/30=0.06
73 6 6/30=0.2
74 3 3/30=0.1
Total 30 1
the frequency distribution for the data is given above.
The relative frequency as decimals, rounded to the nearest tenth is 1
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what is the width of 1 book, if the bookshelf is 3 feet 9 inches wide?
Answer:
2.5
Step-by-step explanation:
Step-by-step explanation:
Given
Shelf Width = 3ft 9in
Copies = 18
Required
Determine the width of each book
This is calculated by dividing the shelf width by the number of copies.
Width = Shelf Width ÷ Copies
Width = (3 ft 9in) ÷ (18)
[Convert with to inches]
Width = (3 * 12 + 9) ÷ (18)
Width = (36 + 9) ÷ (18)
Width = 45 ÷ 18
Width = 2.5 inches
simplify the expression: 6(1+9t)
Answer:
Hi!
The answer would be: 6 + 54t
I hope this helped you! :)
Step-by-step explanation:
Answer:
54t + 6
Step-by-step explanation:
Simplify the expression. Use the distributive property. The distributive property states that an expression which is given in form of a(b + c) can be solved into (ab) + (ac). Distribute and multiply 6 to all terms within the parenthesis. Then, simplify:
[tex]6(1 + 9t)\\\\=(6 * 1) + (6 * 9t)\\= (6) + (54t)\\ = 54t + 6[/tex]
54t + 6 is your answer.
~
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Let a, b, and c be real numbers where a ≠ b ≠ c ≠ 0. Which of the following functions could represent the graph below?
f(x) = x²(x-a)²(x-b)4(x-c)
f(x) = x³(x-a)³(x-b)(x-c)²
f(x) = x²(x-a)(x-b)³(x-c)³
f(x) = (x-a)^2(x-b)(x-c)^6
The characteristics of polynomial graphs' intercepts reveal the multiplicity's characteristics. The function is a potential representation of the graph; f(x) = x²·(x - a) (x - a) , ²·(x - b) (x - b),⁴·(x - c) (x - c).
How to find the calculation?The alternative provides a function that can represent a graph;
f(x) = x²·(x - a) (x - a)
²·(x - b) (x - b)
⁴·(x - c) (x - c)
Reason:
The graph's description is as follows:
Three points on the graph deviate from the x-axis.
Therefore;
The first equation is satisfied by the graph's even multiplicity at three places, such as x2, (x - a)2, and (x - b)4.
The graph once almost linearly crosses the x-axis.
Therefore;
The first equation's function contains a single zero or component, such as (x - c), so;
The function is a potential representation of the graph;
f(x) = x²·(x - a) (x - a)
²·(x - b) (x - b)
⁴·(x - c) (x - c).
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Help me please just 5-8
Answer:
listed below
Step-by-step explanation:
5.) x=77 and y=63
6.)y=60 and x= 1230
7.)y=65 and x=92
8.)y=69 and x=175
the manager of a store increases the price of a popular product the new price x+0.07x
Answer:
The new price of the product will be 1.07x, where x is the original price.
The manager has increased the price by 0.07x, which is 7% of the original price. This is equivalent to multiplying the original price by 1 + 0.07, or 1.07.
So, the new price of the product is 1.07 times the original price, or 1.07x.
A distribution of values is normal with a mean of 200 and a standard deviation of 19. From this distribution, you are drawing samples of size 33. Find the interval containing the middle-most 86% of sample means: Enter your answer using interval notation. In this context, either inclusive [] or exclusive () intervals are acceptable. Your numbers should be accurate to 1 decimal places.
The interval containing the middle-most 86% of sample mean in the interval notation is is (196.4, 203.5)
The 50 +/- 86/2 percentile will make up the center 86% of the sample means' distribution.
The 86th percentile's z-score is 1.08
sample mean population mean = 200
standard deviation from mean = 19
sample size = 33.
Standard error (SE) is equal to 19 / sqrt(33) = 3.3077.
86th percentile x can be located using the formula z = (x - population mean)/sample error.
1.08 = (x - 200)/3.3077
x = 3.3077* 1.08 + 200 = 203.57
that is the interval's upper bound.
it is 3.5721 over the population mean (203.57 - 200).
Due to the symmetry of the normal distribution, the interval's bottom bound will be 1.66 standard deviations below the population mean (200 - 3.572 = 196.428).
then the interval is (196.4, 203.5).
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Properties of Definite Integrals A definite integral is a function that assigns a value to the area under a curve on a given interval.
Properties of Definite Integrals A definite integral is a function that assigns a value to the area under a curve on a given interval are additive , linearity , continuity , monotonicity and upper and lowersums.
1. Additivity: The definite integral of a sum is equal to the sum of the definite integrals.
2. Linearity: The definite integral of a linear function is equal to the product of the function's slope and the length of the interval.
3. Continuity: The definite integral of a continuous function is equal to the area under the curve between two points.
4. Monotonicity: If a function is increasing or decreasing on a given interval, then the definite integral of the function is also increasing or decreasing.
5. Upper and Lower Sums: The upper and lower sums of a function are the sums of the areas of rectangles constructed under or over the curve between two points. The definite integral of the function is equal to the difference between the upper and lower sums.
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random samples of size 100 are drawn. from the population to generate a sampling distribution of sample means
The mean of the sample means from all feasible samples is less than the population means for random samples of size 100 from a population.
The population propose will match the pattern mean's proposal. The population trendy deviation divided by the rectangle root of the sample length yields the same results as the standard deviation of the distribution of the sample means, also known as the same old mistakes of the proposed (n).
The general sample recommends factors to be included in the pattern mean calculation.
The population suggest is calculated using the sum of all values within the population denoted with the aid of the summation of X divided by the number of values in the population that is denoted with the aid of N. The population suggest is the mean or average of all values within the given population.
Therefore,
The mean of the sample means from all feasible samples is less than the population means for random samples of size 100 from a population.
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Write the relation as a set of ordered pairs. A relation. An arrow goes from negative 2 to 4, 0 to 0, 2 to 4. a. ordered pairs: {(4, –2), (0, 0), (2, 4)} b. ordered pairs: {(–2, 4), (0, 0), (4, 2)} c. ordered pairs: {(–2, 4), (0, 0), (2, 4)} d. ordered pairs: {(4, –2), (0, 0), (4, 2)} Please select the best answer from the choices provided A B C D Mark this and return
The required relation as a set of ordered pairs is (C) {(–2,4), (0,0), (2,4)}.
What are the Ordered pairs in the set?A set of ordered pairs is any pair of components that appear in a specific sequence and are wrapped in brackets.
If there are two elements, "a" and "b," then the two distinct pairings are "(a, b)" (b, a).
A is referred to as the first element and B is referred to as the second element in an ordered pair (a, b).
A pair of numbers in a particular order is known as an ordered pair.
The ordered pairings (1, 2) and (-4, 12) are two examples.
It matters which of the two numbers comes first: (2, 1) and (1, 2) are not the same thing (2, 1).
So, an arrow in a relationship travels from -2 to 4, 0 to 0, and 2 to 4.
Consequently, by virtue of ordered pairs.
The ordered pairings are obtained:
(-2, 4)
(0, 0)
(2, 4)
Hence, the pairs are (-2, 4), (0, 0), and (-2). (2, 4)
Therefore, the required relation as a set of ordered pairs is (C) {(–2, 4), (0, 0), (2, 4)}.
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Correct question:
Write the relation as a set of ordered pairs.
A relation. An arrow goes from negative 2 to 4, 0 to 0, 2 to 4.
a. ordered pairs: {(4, –2), (0, 0), (2, 4)}
b. ordered pairs: {(–2, 4), (0, 0), (4, 2)}
c. ordered pairs: {(–2, 4), (0, 0), (2, 4)}
d. ordered pairs: {(4, –2), (0, 0), (4, 2)}
Please select the best answer from the choices provided
A
B
C
D
The length of four rivers in Africa is shown in the table below.
How is the length of the Zambezi river written in scientific notation?
Move the correct answer to each box. Not all answers will be used.
The length of the Zambezi river is 838 × 10⁵ or 83.8 × 10⁶ or 8.38 × 10
What is scientific notation?
Using scientific notation, one can express extremely big or extremely small values. When a number between 1 and 10 is multiplied by a power of 10, the result is represented in scientific notation.
For example, 750,000,000 can be written in scientific notation as 7.5 ✕ 10⁸.
The length of the Zambezi river 83,800,000 feet.
Rewrite 83,800,000:
83,800,000 = 838 × 100000
83,800,000 = 838 × 10⁵ [Since the number of zeros is 5]
Multiply and divide 10:
83,800,000 = 838 × 10⁵ × (10/10)
83,800,000 = (838/10) × 10⁵ × 10
83,800,000 = 83.8 × 10⁵ × 10
83,800,000 = 83.8 × 10⁶
Multiply and divide 10:
83,800,000 = 83.8 × 10⁶ × (10/10)
83,800,000 = (83.8/10) × 10⁶ × 10
83,800,000 = 8.38 × 10⁷
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Caleb's school is five blocks due north of his home, and is the closest to the straight-line distance from Caleb's s
A) 389 f t
B) 825 f t
C) 1,260 ft
(D) 1,481 ft
If Caleb's school is five blocks due north of his home, the figure that is closest to the straight-line distance from Caleb's s is (D) 1,481 ft.
What is distance?Distance can be defined as how far an object is from another object.
Using Pythagoreans theorem
Hypotenuse =√Perpendicular² + Base²
Where:
Perpendicular = 275 feet ×5 = 1375ft
Base = 275 feet × 2 = 550ft
Let plug in the formula
Hypotenuse =√ 1375 ft² + 550ft
Hypotenuse =√1,890,625 + 302,500
Hypotenuse =√2,193,128
Hypotenuse = 1,480.9ft
Hypotenuse = 1,481ft (Approximately)
Therefore the correct option is D.
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record the angular velocity w. calculate the total moment of inertia of the cylinder-person system. (hint: treat the person as a single particle.) calculate the total angular momentum of the system.
For recording the angular velocity we will use
angular velocity, ω = dθ /dt
Angular velocity:
Angular velocity is a vector quantity, expressed as the angular velocity or rotational speed of an object and the rate of change of angular displacement that specifies the axis about which the object rotates. The amount of change in a particle's angular displacement over time is called its angular velocity. The trajectory of the angular velocity vector is usually perpendicular to the plane of rotation in the direction given by the right-hand rule.
Total Moment of Inertia:
The total moment of inertia is the sum of the moments of inertia of the mass elements in the body.
Unlike mass, which is a constant for a given body, the moment of inertia depends on the location of the center of rotation. In general, the moment of inertia is calculated by using integral calculus.
Thin cylindrical shell open at both ends, radius r, mass m.
This formula assumes that the thickness of the shell is negligible. This is a special case of a thick-walled cylindrical tube with r1=r2. A point mass m at the end of a rod of length r has the same moment of inertia and the value r is called the radius of gyration.
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Which graph represents the solution set of the system of inequalities?
y < -3x-2
y ≤ x-2
The graph that represents the solution to the system of inequalities is graph (a).
What is system of inequality?
A group of two or more inequalities in one or more variables is referred to as a system of inequalities. When a problem requires a variety of solutions and those solutions must satisfy multiple constraints, systems of inequalities are used.
The given system of inequalities is,
y < -3x - 2
y ≤ x - 2
y < -3x - 2 means that the left-hand side of the inequality will be shaded, and the line of the inequality will be a dotted line.
y ≤ x - 2 means that the left-hand side of the inequality will be shaded, and the line of the inequality will be a closed line.
The above highlights means that the shaded region that represent the solution to the system of inequalities will be at the left-hand side
Hence, graph (a) represents the system of inequalities.
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4.) BLACK
Calculate the volume
of 500 g of salt
Density of Salt is 2.16
Answer: 2 170 kilograms [kg] of Salt fit into 1 cubic meter. 135.46867 pounds [lbs] of Salt fit into 1 cubic foot. Salt weighs 2.17 gram per cubic centimeter or 2 170 kilogram per cubic meter, i.e. density of salt is equal to 2 170 kg/m³; at 20°C (68°F or 293.15K) at standard atmospheric pressure . In Imperial or US customary measurement system, the density is equal to 135.469 pound per cubic foot [lb/ft³], or 1.254 ounce per cubic inch [oz/inch³] .
Step-by-step explanation:
On a 3 section math test a student correctly answered 17/20 11/15 20/25 what percentage of questions on the entire test did the student answer correctly
Step-by-step explanation:
17 of 20
11 of 15
20 of 25
that is in total
17+11+20 = 48
of
20+15+25 = 60
so, he answered 48 of 60 correctly
48/60 = 4/5 = 0.8 = 80%
Answer:
79.44%
Step-by-step explanation:
We are given that there are 3 sections to this test and how the student scored in each of those sections. Let us add all of these fractions together.
[tex]\frac{17}{20} +\frac{11}{15} +\frac{20}{25} =\frac{143}{60} \\[/tex]
We must now divide this amount by 3 to find the average of the three sections. This gives us [tex]\frac{143}{180}[/tex].
These means that the student answered [tex]\frac{143}{180}[/tex] of the questions correctly, or 79.44%.
The Bay Area Online Institute (BAOI) has set a guideline of 60 days for the time it should take to complete an independent study course. In analyzing the times taken to complete the course for 16 random students, BAOI found the average time it took to complete the course was 72 hours with a standard deviation of 20 hours. Consider the possible inferences BAOI can make about the time it takes to complete this course if they assume that the time it takes is normally distributed: i. At the 5% level, BAOI can infer that the average time to complete exceeds 60 hours. ii. At the 1% level, BAOI can infer that the average time to complete exceeds 60 hours. What is true about i. and it: O Only (l) is true O There is insufficient information to determine which of the other answers shown here is correct. O Neither (1) nor (ii) is true O Both (1) and (ii) are true O Only ) is true
As per the given standard deviation, only (i) is true.
The term standard deviation refers the measures the dispersion of a dataset relative to its mean and is calculated as the square root of the variance.
Here have given that the Bay Area Online Institute (BAOI) has set a guideline of 60 days for the time it should take to complete an independent study course.
Here by analyzing the times taken to complete the course for 16 random students, BAOI found the average time it took to complete the course was 72 hours with a standard deviation of 20 hours.
So, let us consider the possible inferences BAOI can make about the time it takes to complete this course if they assume that the time it takes is normally distributed:
i. For the 5% level, BAOI can infer that the average time to complete exceeds 60 hours.
ii. For the 1% level, BAOI can infer that the average time to complete exceeds 60 hours.
Here we are trying to determine if they should spend at least 480 minutes a day studying.
Now, our knoll is that the mean is 480 and then we are looking for evidence that they are studying less than 480.
Here we don't know the population standard deviation so we're going to use a distribution.
In the given, critical values are going to be a distribution with degrees of freedom.
So, if we look at a chart 11 of freedom, we can see our critical value. I'm going to center to zero if I draw our T.
Therefore, the tail probability of.05 and the rest of it is.95%.
Based on these value we have conform that option (1) is correct.
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Lisa read 2/5 of her book over the weekend and 1/3 of it on monday. What fraction of the book is left?
Answer:
4/15
Step-by-step explanation:
To answer this question, we're gonna want to convert the fractions so that they have the same denominator (the number on the bottom of the fraction) and it's easy for us to visualize what's going on. AKA, we need to find the least common denominator (LCD).
We're going to multiply 2/5 and 1/3 by a number so they have the same denominator. In this case, that would mean multiplying them by the other fractions denominator. So multiplying 2/5 by 3 and 1/3 by 5.
2/5x3= 6/15. 1/3x5=5/15.
Now we're viewing the book in 15ths instead of both 5ths and 3rds.
6+5=11, so we know that 11/15 of the book has been read.
15/15-11/15=4/15
4/15 of the book is left to read.
Hope this explanation helped!
Given f(x) = 4x2 – 4x + 1 and g(x) = 2x – 1, which of the following are expression(s) for f · g? Select all that apply.
A. 6x3 + 6x2 – 6x + 1
B. (2x – 1)3
C. 8x3 – 12x2 + 6x – 1
D. 4x2 – 2x
The value for the expression, (f * g)(x) is calculated as: C. 8x³ - 12x² - 6x - 1.
How to Evaluate the Expressions of Functions?We are given the following functions,
f(x) = 4x² – 4x + 1 and g(x) = 2x – 1.
To find the value of the expression, (f * g)(x), it means we have to multiply the functions together. See the steps explained below.
(f * g)(x) = f(x) * g(x)
Plug in the values:
(f * g)(x) = f(x) * g(x) = (4x² – 4x + 1)(2x – 1)
(f * g)(x) = 4x²(2x – 1) - 4x(2x – 1) + 1(2x – 1)
Apply the distribution property of equality:
(f * g)(x) = 8x³ – 4x² - 8x² + 4x + 2x – 1
Combine like terms:
(f * g)(x) = 8x³ - 12x² - 6x - 1
Therefore, the answer is: C. 8x³ - 12x² - 6x - 1.
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AXY is similar to ABC
Which of the following expressions could be used to determine the length of segment AB?
The expression that could be used to determine the length of segment AB in the triangles given is: A. AB = AX * AC/AY.
What are Similar Triangles?When two triangles are stated to be similar to one another, it means both triangles have equal corresponding angles, but their corresponding sides have proportional lengths or have ratios that are equal.
This means similar triangles have the same shape but different sizes, since their corresponding side lengths have proportional length.
Given that triangle AXY is similar to triangle ABC, it means that:
m<A = m<A
m<X = m<B
m<Y = m<C
AX/AB = AY/AC = XY/BC
To find the length of AB, we could use the following expression derived from the ratios stated above:
AX/AB = AY/AC
Cross multiply:
(AB) * (AY) = (AX) * (AC)
Divide both sides by AY
(AB) * (AY) / AY = (AX) * (AC) / AY
AB = AX * AC/AY
The expression to use is: A. AB = AX * AC/AY
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Suppose that DEF is isosceles with base DE.
Suppose also that mZD=(5x+26)° and mZF = (3x+63)°.
Find the degree measure of each angle in the triangle.
k
D
(5x + 26)
-(3x + 63)°
E
mZD=
mZE=
mZF =
X
O
The degree measure of each angle in the triangle would be
m∠D = 56°
m∠F = 81°
m∠E = 43°
What is an isosceles triangle?
In an isosceles triangle, the two base angles are congruent, or equal in measure.
In addition, the sum of the measures of the angles in any triangle is always 180 degrees. Therefore, we can set up an equation to find the measure of each angle in the triangle:
m∠D + m∠F + m∠E = 180 degrees
Substituting the given values for the measures of angles D and F, we get:
(5x+26) + (3x+63) + m∠E = 180
Combining like terms and solving for m∠E, we find that:
m∠E = 180 - (5x+26) - (3x+63)
= 180 - 8x - 89
= 91 - 8x
Therefore, the measure of angle E is 91 - 8x degrees.
To find the measure of angles D and F, we can substitute this value back into the equation:
m∠D + m∠F + m∠E = 180
(5x+26) + (3x+63) + (91-8x) = 180
Solving for x, we find that x = 6.
m∠D =5(6) + 26 = 30 + 25 = 56°
m∠F = 3(6) + 63 = 18 + 63 = 81°
m∠E = 91 - 8(6) = 91 - 48= 43°
Therefore, the degree measure of each angle in the triangle would be
m∠D = 56°
m∠F = 81°
m∠E = 43°
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The degree measure of each angle in the triangle would be
m∠D = 56°
m∠F = 81°
m∠E = 43°
What is an isosceles triangle?
In an isosceles triangle, the two base angles are congruent, or equal in measure.
In addition, the sum of the measures of the angles in any triangle is always 180 degrees. Therefore, we can set up an equation to find the measure of each angle in the triangle:
m∠D + m∠F + m∠E = 180 degrees
Substituting the given values for the measures of angles D and F, we get:
(5x+26) + (3x+63) + m∠E = 180
Combining like terms and solving for m∠E, we find that:
m∠E = 180 - (5x+26) - (3x+63)
= 180 - 8x - 89
= 91 - 8x
Therefore, the measure of angle E is 91 - 8x degrees.
To find the measure of angles D and F, we can substitute this value back into the equation:
m∠D + m∠F + m∠E = 180
(5x+26) + (3x+63) + (91-8x) = 180
Solving for x, we find that x = 6.
m∠D =5(6) + 26 = 30 + 25 = 56°
m∠F = 3(6) + 63 = 18 + 63 = 81°
m∠E = 91 - 8(6) = 91 - 48= 43°
Therefore, the degree measure of each angle in the triangle would be
m∠D = 56°
m∠F = 81°
m∠E = 43°
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Need Help with this question.
Answer:
x=5
Step-by-step explanation:
If p and q are parallel, then the two angles in question should be equal to one another.
So,
(3x+15)°=(8x-10)°
(3x+15)°+10°=(8x-10)°+10°
(3x+25)°=(8x)°
(3x+25)°-(3x)°=(8x)°-(3x)°
25°=5x°
5=x
So, the two angles should be (8(5)-10)° and (3(5)+15)°. Both of these expressions equal 30°. This makes sense, as the illustration shows that the two angles are acute.
Fully simplify.
(3x^2y^2)^3
(3x
2
y
2
)
3
Answer:
[tex]27x^6y^6[/tex]
Step-by-step explanation:
The formatting of the question is a bit confusing, but if the expression is [tex](3x^2y^2)^3[/tex], use the power of a product exponent rule [tex](ab)^m=(a)^m(b)^m[/tex]. So,
[tex](3x^2y^2)^3=(3)^3(x^2)^3(y^2)^3[/tex].
Next, use the power of a power exponent rule [tex](a^m)^n=a^{m*n}[/tex]. So,
[tex](3)^3(x^2)^3(y^2)^3=27(x^{2*3})(y^{2*3})=27x^6y^6[/tex]
A box contains 2 red marbles and 3 black marbles. Two marbles are drawn in succession without replacement. Find the following: a. Find the probability the second marble is red? b. Find the probability that both marbles are the same color? c. Find the probability that the second marble is black given the first marble is red? d. Find the probability that first marble red given that the second marble is red?
a. The probability that the second marble is red is 2/5, since there are 2 red marbles and a total of 5 marbles.
b. The probability that both marbles are the same color is 4/15, since there are two ways that this could happen (both red or both black) and there are 15 possible outcomes in total.
c. The probability that the second marble is black given the first marble is red is 3/4, because out of the 4 possible outcomes (RR, RB, BR, BB) the only way to get a black marble on the second draw is if it is BR.
d. The probability that the first marble is red given that the second marble is red is 2/3, because out of the 3 possible outcomes (RR, RB, BR) the only way to get a red marble on the first draw is if it is RR or RB.
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HEPPPP ASPP!!! PLEASE I BEG YOU !!
John is having a new deck built. He paid $485 for the required materials, and he will pay his brother $25 an hour to build the deck. Which table shows the relationship between h, the number of hours john’s brother works, and c, the total cost of the project ?
According to the given questions the answer is for 3 hour $560, for 8 hour cost $685 and for 12 hour cost $785.
What are time and work?A crucial concept that time and labour have in common with some other mathematical topics is the concept of proportionality. Because efficiency grows inversely linked to the amount of time needed when the quantity of work is constant.
What is work time problem in math?The fundamental equation for solving is 1/r+1/s=1/h. Let's choose Hrithik as our example. Let's assume that Hrithik completes 1/20 of something like the work in a day and Dhoni completes 1/30 of the work in a day. They will accomplish 1/20 + 1/30 = 5/60 = 1/12th of something like the work in a day if they collaborate.
Briefing:Given that John paid $485 to build a deck.
And he will pay $25 per hour to his brother for building the deck.
one hour of work costs John $25 + $485 .
Total cost of building deck = $25 × h number of hours + $485
3 hour of work costs $25 × 3 = $75 + $485 = $560
8 hour of work costs = $25 × 8 = $200 + $485 = $685
12 hour of work costs = $25 × 12 = $300 + $485 = $785
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The complete question is-
John is having a new deck built. He paid $485 for the required materials, and he will pay his brother $25 an hour to build the deck. Which table shows the relationship between h, the number of hours John’s brother works, and c, the total cost of the project?
h c
0 485
3 510
8 535
12 560
h c
0 510
3 535
8 560
12 585
h c
0 485
3 560
8 685
12 785
h c
0 510
3 585
8 710
12 810
Frank bought two pork roasts. One roast weighed five and seven-eighths pounds and the other roast weighed nine and five-sixths pounds. What is the total weight of the pork roasts?
Answer:
15[tex]\frac{17}{24}[/tex]
Step-by-step explanation:
5 [tex]\frac{7}{8}[/tex] + 9 [tex]\frac{5}{6}[/tex] We can write the fractions as equivalent fractions with a common denominator of 24
[tex]\frac{7}{8}[/tex] x[tex]\frac{3}{3}[/tex] = [tex]\frac{21}{24}[/tex]
[tex]\frac{5}{6}[/tex] x [tex]\frac{4}{4}[/tex] = [tex]\frac{20}{24}[/tex]
5[tex]\frac{21}{24}[/tex] + 9[tex]\frac{20}{24}[/tex]
5 + 9 + [tex]\frac{21}{24}[/tex] + [tex]\frac{20}{24}[/tex]
14 + [tex]\frac{41}{24}[/tex]
14 + [tex]\frac{24}{24}[/tex] + [tex]\frac{17}{24}[/tex] I broke up [tex]\frac{41}{24}[/tex] because [tex]\frac{24}{24}[/tex] is another name for 1
14+1 + [tex]\frac{17}{24}[/tex]
15[tex]\frac{17}{24}[/tex]