Answer: x=-3 x √2
Step-by-step explanation:
Answer:
x = 24
Step-by-step explanation:
I think the question is [tex] \sqrt{x+1}+4=-1 [/tex]
[tex] \sqrt{x+1}=-5 [/tex]
[tex] x+1=25 [/tex]
x = 24
4. If a line intersects two concentric circles (circles with the same centre) with centre O at A, B, C and D, prove that AB = CD (see Fig. 10.25).
The proof that AB = CD in the concentric circles is shown below
How to prove the equation AB = CDFrom the question, we have the following parameters that can be used in our computation:
The concentric circles
This means that the circles have the same center
From the circles, we have the following congruent lines
AC = BD
Subtract BC from both sides of the equation
So, we have the following representation
AC - BC = BD - BC
Evaluate the difference
This gives
AB = CD
Hence, it is true that AB = CD
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Answer:
Hope it will help you...
Find the values of x and z !!
The value of x and z are [tex]4^\circ, 96^\circ[/tex].
Now from the picture I can say that, [tex]\angleAOB[/tex][tex]\angle AOB[/tex] and [tex]\angleCOD[/tex][tex]\angle COD[/tex] are opposite angles.
We know the measure of the triangle are equal in Pair.
So we have got the equation as -
[tex]10x+44=13x+32[/tex]
⇒[tex]13x-10x=44-32[/tex]
⇒3x=12
⇒x=4.
We have got that the measure of [tex]\angle AOB, \angle COD[/tex] are both [tex]84^\circ[/tex].
Now angles around a point add to [tex]360^\circ[/tex].
So, [tex]\angle AOD[/tex] and [tex]\angle BOC[/tex] are equal since they are pairwaite wisw.
Now, [tex]z+z= 360^\circ - (84^\circ+84^\circ)[/tex]
⇒[tex]2z=192^\circ[/tex]
⇒ [tex]z=96^\circ[/tex],
Hence we have got the value of x and z i.e. 4 and 96.
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A sum of RS 140 is divided into two parts. If two times the greater part is 15 less than three times the smaller part . Find the parts of the sum
Answer:
greater part = Rs.81
smaller part = Rs.59
Step-by-step explanation:
Solution:
Let the greater part be x and smaller part be (140 - x)
Acccording to question,
or, 2x+15 = 3(140 - x)
or, 2x+15 = 420-3x
or, 2x+3x = 420-15
or, 5x = 405
or, x = 405÷5
x = 81
Therefore, the greater part = x = 81
the smaller part = (140-x) =(140-81) = 59
Find the 44th term in the sequence: 10, 13, 16, 19,....
Answer: starting from 0: 132. starting from 10: 162
Step-by-step explanation:
(01.02 MC) Simplify negative 2 and 1 over 6 - negative 7 and 1 over 3 . (5 points) Group of answer choices negative 5 and 1 over 6 negative 9 and 3 over 6 9 and 3 over 6 5 and 1 over 6
The expression is simplified to give 9 and 3 over 6. Option C
What is a fraction?A fraction can be defined as the part of a whole element or any number of equal parts.
The several types of fractions includes;
Mixed fractionsImproper fractionsProper fractionsSimple fractionsComplex fractionsFrom the information given, we have that;
negative 2 and 1 over 6 = - 2 1/6 negative 7 and 1 over 3 = - 7 1/3Now, substitute the mixed fractions
- 2 1/6 - ( 7 1/3)
convert to improper fractions
-13/6 - ( 22/3)
expand the bracket, we have;
- 13/6 - 22/3
Find the lowest common multiple
-13 - 44 /6
Add the numerators
57/6
9 3/6
Hence, the value is 9 3/6
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Consider the line -8x -6y = -4.
What is the slope of a line parallel to this line?
What is the slope of a line perpendicular to this line?
Slope of the line is .[tex]\frac{-4}{3}[/tex]
Slope of the line perpendicular to the given line is [tex]\frac{3}{4}[/tex]
What is the slope of a line?A line's steepness and direction are measured by the line's slope. Without actually using a compass, determining the slope of lines in a coordinate plane can assist in forecasting whether the lines are parallel, perpendicular, or none at all.
Any two different points on a line can be used to calculate the slope of any line. The ratio of "vertical change" to "horizontal change" between two different locations on a line is calculated using the slope of a line formula.
A line's slope is determined by how its y coordinate changes in relation to how its x coordinate changes. As opposed to the net change in the x coordinate, the net change in the y coordinate is y.
y and x are the net changes in the y and x coordinates, respectively. Therefore, it is possible to write the change in y coordinate with respect to the change in x coordinate as,
A line's slope is a measurement of how steep it is or the direction it is going in relation to a coordinate system.
where m is the slope and m = y/x
Take notice that tanФ = y/x.
This tanФ is often referred to as the line's slope.
Calculation:The given equation is of the form [tex]ax+by=c[/tex]
On comparing we can say that a is -8 and b is -6
So using the slope formula [tex]\frac{-A}{B}[/tex] we get slope as [tex]\frac{4}{-3}[/tex]
The perpendicular line slope can be found out by equation [tex]m1.m2=-1[/tex]
Therefore substituting slope from the above as m1 we get m2 = [tex]\frac{3}{4}[/tex]
Slope of the line is .[tex]\frac{-4}{3}[/tex]
Slope of the line perpendicular to the given line is [tex]\frac{3}{4}[/tex]
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which statement about the parallelogram is true
Answer:
All parallelograms have opposite sides that are parallel.
Step-by-step explanation:
A parallelogram is a non-self-intersecting quadrilateral with two pairs of parallel sides.
PLEASE HELP ME
Santiago wants $75000 at the end of 8 years in order to buy a car. If his bank pays 4.8% interest, compounded semi-annually, how much must he deposit every six months in order to reach his goal?
Answer:
we find that Santiago needs to deposit $3068.96 every six months in order to reach his goal of $75000 at the end of 8 years.
Step-by-step explanation:
To solve this problem, we can use the formula for compound interest:
FV = PV(1 + r/n)^(nt)
where:
FV is the future value (in this case, the amount Santiago wants to save, $75000)
PV is the present value (the amount Santiago needs to deposit every six months)
r is the annual interest rate (4.8% in this case)
n is the number of times the interest is compounded per year (semi-annually, or 2 times per year in this case)
t is the number of years Santiago is saving for (8 years in this case)
Rearranging the formula to solve for PV, we get:
PV = FV / (1 + r/n)^(nt)
Plugging in the values from the problem, we get:
PV = $75000 / (1 + 0.048/2)^(2*8)
Thus, we find that Santiago needs to deposit $3068.96 every six months in order to reach his goal of $75000 at the end of 8 years.
Number of nickels in $4.20
Answer:4
Step-by-step explanation:
Divide. Check your solutions by multiplying.
1. 409÷5
Answer:
Step-by-step explanation:
409/5 is 1/8. then 81.8 and then check by multiplying 81.8 by 5 and that equals 409.
Woulsnt it be y=7x+35
X would be the number of lawns he mows. We dont know that answer.
Y would be the amount he is paid. So i think it would be
Y=35 + X
Trying my best here im not good with algebra. I know that Y goes with the 35$
what is the probability of rolling a six sided die six times and having all numbers from 1 through 6 appear once in any order?
The final answer is that the probability of rolling a six sided die six times and having all numbers from 1 through 6 appear once in any order is 1.54.
This is calculated by probability of independent events.
We know that any die can get any of the six sides and all the throws are independent, so their intersection is given by the product.
So, P(A and B occurring together )= P(A)P(B) if A and B are independent.
And the probability of the throws i.e. the no. of ways every throw gets a unique number is (6/6) x (5/6) x (4/6) x (3/6) x (2/6) x (1/6)
This is because, being the probability of independent events , they are multiplied.
so, the total probability is 6.5.4.3.2.1/6^6 = 1.54
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what solution does this system have? y=3x+2 and y=3x-6
If the Two Lines are parallel, then the pair has no solution and is called inconsistent. This system has No Solution.
What is inconsistent?If the Two Lines are parallel, then the pair has no solution and is called inconsistent.
Given: y=3x+2
y=3x-6
Standard equation of line is: ax+by+c=0
Here ,Two standard equations of line are: a₁x + b₁y + c₁ =0
a₂x + b₂y + c₂=0
Compare these equation to the given equations to find out the value of a₁ ,b₁ ,c₁, a₂, b₂ ad c₂.
a₁=3 b₁=-1 c₁=2 and a₂=3 b₂= -1 c₂= -6
[tex]\frac{a_1}{a_2} =\frac{b_1}{b_2} \neq \frac{c_1}{c_2} \\\frac{3}{3}= \frac{-1}{-1}\neq \frac{2}{-6}[/tex] ( after putting the value)
If the Two Lines are parallel, then the pair has no solution and is called inconsistent. This system has No Solution.
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Given the function f(x)=7(3-x)+5 what is the answer
The answer of the function f(x)=7(3-x)+5 is -7x + 26.
What is a function?A function is a relationship between a number of inputs and outputs. A function is an association of inputs where each input is coupled with exactly one output. There is a range, co-domain, and domain for every function.
Given the function;
f(x)=7(3-x)+5
To simplify the function:
First, solve parenthesis,
f(x)=21 - 7x +5
Taking, constant with constant term,
f(x) = -7x + 26
Therefore, the answer is -7x + 26.
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The cost (c) to paint a building varies directly with the area of the surface being painted (a) in square feet. It costs $3,000 to paint a room with a surface area of 1,500 square feet. Determine an equation that gives the relationship between c and a.
The equation that gives the relationship between cost (c) and area (a) is c = 2a
How to determine an equation that gives the relationship between cost and area?A variation is a relation between a set of values of one variable and a set of values of other variables
Given that: the cost (c) to paint a building varies directly with the area of the surface being painted (a) in square feet
We can write:
c α a
c = ka
where k is the constant of proportionality
since c = $3,000 and a = 1500
c = ka
3000 = 1500k
k = 3000/1500
k = 2
Thus, the equation of the relationship is c = 2a
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Which of the following equations has a different value of x than the others?(1 point
x + 9/8 = 7/4
x − 7/8 = −3/2
x + 0.875 = 1.5
x − 0.025 = 0.6
Answer: The equation [tex]x-7/8=-3/2[/tex] has a different value of x than the others. The value of x here is -0.625, while in all the other equations, the value of x is 0.625.
Step-by-step explanation: Simplifying the equation [tex]x+9/8=7/4[/tex], we get:
[tex]x=7/4-9/8[/tex]
[tex]x=0.625[/tex]
Simplifying the equation [tex]x-7/8=-3/2[/tex], we get:
[tex]x=-3/2+7/8[/tex]
[tex]x=-0.625[/tex]
Simplifying the equation [tex]x+0.875=1.5[/tex], we get:
[tex]x=1.5-0.875[/tex]
[tex]x=0.625[/tex]
Simplifying the equation [tex]x-0.025=0.6[/tex], we get:
[tex]x=0.6+0.025[/tex]
[tex]x=0.625[/tex]
Therefore, [tex]x+9/8=7/4[/tex] has a different value of x than the others.
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Noah is baking cookies. the recipe he is using makes 48 cookies and uses 1/4 cup of sugar. How much sugar will Noah need to make 72 cookies?
Answer: Approx. 0.375 cups of sugar
Step-by-step explanation:
1/4=0.25
0.25 cups of sugar per 48 cookies = 0.25/48= (about) 0.00520833333 per cookie
0.00520833333 cups of sugar x 72 cookes= 0.375 cups of sugar for 72 cookies
rewrite 63/7 as a whole number
Answer:
9
Step-by-step explanation:
63 divided 7=9
How would i solve for E
Answer:
5/13
Step-by-step explanation:
[tex]CE=\sqrt{10^2 + 24^2}=26 \\ \\ \cos E=\frac{10}{26}=\frac{5}{13}[/tex]
Evaluate. Remember Order of
Operations! (PEMDAS)
8 x 3²- (14+ 6) = [?]
Answer:
52
Step-by-step explanation:
Order of Operations says to do Parenthesis first, then exponents.
8 x 3²- (14+ 6)
= 8 x 3²- (20)
= 8 × 9 - 20
Then multiply before subtracting in this question.
= 72 - 20
= 52
Help me answer this question for a 10 on my homework
Answer:
1. 4
2. rise = 2; run = 1; slope = 2
3. y = 2x + 4
Step-by-step explanation:
1. Look at the graph. On the y-axis, the line passes through 4. The line crosses the y-axis at 4, so 4 is the y-intercept, and b = 4 in the equation y = mx + b.
2. Choose any two points on the line. I choose the y-intercept, (0, 4) and point (-1, 2).
slope = rise/run
We need to go from point (-1, 2) to point (0, 4) by only moving vertically and horizontally. Start at (-1, 2). Go up 2 units. That is a ris of 2. Now go right 1 unit to arrive at point (0, 4). that is a run of 1.
slope = rise/run = 2
3. We have b = 4, and m = 2.
y = mx + b
y = 2x + 4
One group of carolers goes to every 6th house in a neighborhood, another goes to every 8th house. At which house will they first meet?
The house that they will first meet if a group of carolers goes to every 6th house in a neighborhood, another goes to every 8th house is the 24th house.
How to calculate the multiple?The smallest positive integer that is divisible by both a and b is known as the least common multiple, lowest common multiple, or smallest common multiple of two integers, or lcm(a, b), in mathematics and number theory. Since the result of dividing an integer by zero is undefinable, this definition only applies if both a and b are not equal to zero.
Before fractions can be added, subtracted, or compared, the "lowest common denominator" can be employed.
From the information, a group of carolers goes to every 6th house in a neighborhood, another goes to every 8th house.
It should be noted that this will be illustrated through tye lowest common multiple.
Multiples of 6 = 6, 12, 18, 24
Multiples of 8 = 8, 16, 24
Therefore, they'll meet at the 24th house.
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simplify (6^7)^3
A. 6^21
B. 42^3
C. 6^10
D. (1/6)^21
Answer:
Step-by-step explanation:
its c
Angie is determining the volume of a box in the shape of a rectangular prism. She finds the length is 2cm more than the width and 3 cm less than the depth. Which equation can Angie use to get the volume of the box, in cubic centimeters?
A. V = w(w+2)(w+3)
B. V = w(w+2)(w+5)
C. V = w(w-2)(w-3)
D. V = (w+2)(w+5)
The volume of a box in the shape of a rectangular prism is y³ +7y² +10y cm³.
What is a rectangular Prism ?
A polyhedron with two congruent and parallel bases is known as a rectangular prism. It's also known as a cuboid.
A rectangular prism has six faces, each of which is in the shape of a rectangle and has twelve edges. It's called a prism because of its cross-section along its length.
It is given that length of the rectangular prism has length of 2 cm more than the width and 3 cm less than the depth
Let the depth be x cm
and width be y cm
Then the length will be y+2 cm and x-3 cm
y+2 = x- 3
x = y+5
A rectangular prism is a cuboid with six faces
Volume of a rectangular prism can be written as
length * width * depth
= (y+2) *x*y
= (y+2)* (y+5)*y
= (y²+2y)(y+5)
= y³ +5y²+2y²+10y
= y³ +7y² +10y cm³
Therefore the volume of a box in the shape of a rectangular prism is y³ +7y² +10y cm³.
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Sandy uses three and one half pounds of clay to make 7 small vases. Use a proportion to find how many pounds of clay she will use to make 21 small vases.
7 and one fourth pounds
8 and one half pounds
10 and one half pounds
14 and one fourth pounds
The number of pounds of clay used to make 21 small vases is 10 and one half pounds.
How to find the number of pounds of clay used to make vases?Sandy uses three and one half pounds of clay to make 7 small vases. Using proportion, the number of pounds of clay that she can use to make 21 small vases can be calculated as follows;
Therefore,
7 small vases = 3 1 / 2 pounds of clay(7 / 2)
21 small vases = ?
cross multiply
pounds of clay used to make 21 small vases = 7 / 2 × 21 ÷ 7
pounds of clay used to make 21 small vases = 147 / 2 ÷ 7
pounds of clay used to make 21 small vases = 147 / 2 × 1 / 7
pounds of clay used to make 21 small vases = 21 / 2
Therefore,
pounds of clay used to make 21 small vases = 10 1 / 2
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The fuel for a chain saw is a mix of oil and gasoline. The ratio of ounces of oil to gallons of gasoline is 6:19. There are 57 gallons of gasoline. How many ounces of oil are there?
2 ounces
18 ounces
24 ounces
180.5 ounces
According to the specified ratio , we obtain The gasoline contains 18 ounces of oil.
What's does ratio mean?The number, volume, or size difference between two or more items is known as their proportion.We got the word "ratio" directly from the Latin word, which is also called "suitable ratio." The mathematics and English ratios were derived from the Latin ratio, which had multiple meanings, ranging from "reason" to "calculation" to "proportion."Ratios contrast two figures by ordinarily dividing them. A/B would be your formula if you were comparing one data point (A) to another data point (B). This indicates that you are multiplying information A by information B. For instance, your ratio will be 5/10 if A is 5 and B is 10.The fuel for a chain saw is a mix of oil and gasoline.
The ratio of ounces of oil to gallons of gasoline is 6:19.
So oil : gas = 6:19
There are 57 gallons of gasoline
⇒ oil : gas = 6:19
Let there are x gallons of ounces of oil
So x : 57 = 6:19
Convert ratio to fraction
⇒ x/57 = 6/19
Multiply both sides by 57
⇒ x = (6/19)57
⇒ x = 18
Hence, there are 18 ounces of oil in the fuel.
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Please help meee !!!!???
Answer: 19 feet
Step-by-step explanation:
The area, 266, divided by the width, 14, equals to 19 feet.
y=a-bx^2 to make x the subject
Answer:
y=a -bx^2
-bx^2 = y-a
bx^2 = a-y
x^2 = (a-y)/b
x = + or - sqr[(a-y)/b]
The distribution of the sample mean, , will be normally distributed if the sample is obtained from a p+opulation that is normally distributed, regardless of the sample size.
The statement 'The distribution of the sample mean, x overbar, will be normally distributed if the sample is obtained from a population that is normally distributed, regardless of the sample size.' is True
In this question we have been given a statement 'The distribution of the sample mean, x overbar, will be normally distributed if the sample is obtained from a population that is normally distributed, regardless of the sample size.'
We need to state whether the statement is True or False.
We know that the sampling distribution of the sample mean is the probability distribution of all possible values of the random variable x that are computed from a sample of size n.
Also if a random variable X is normally distributed, the distribution of the sample mean, x overbarx, is normally distributed.
Therefore, given statement is True.
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the greater the absolute size of the correlation coefficient, the greater is the covariation between the two variables, or the stronger is their relationship. true false
What is covariance
Covariance measures the directional relationship between the returns of two assets. A positive covariance means that the asset returns move together, a negative covariance means they move in opposite directions.
What does covariance between two variables mean?
Covariance measures the direction of the relationship between two variables. A positive covariance means that both variables tend to be high or low at the same time. Negative covariance means that as one variable increases, the other tends to decrease.
correlation coefficient
Correlation coefficient measures the strength of association between two variables. The most common correlation coefficient, called the Pearson product-moment correlation coefficient, measures the strength of linear association between variables measured on an interval or ratio scale.
according to the question given data,
the greater the absolute size of the correlation coefficient, the greater is the covariation between the two variables ,or the stronger is their relationship,(true)
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