Answer:
y = 4x - 6
Step-by-step explanation:
the equation of a line in slope- intercept form is
y = mx + c ( m is the slope and c the y- intercept )
calculate m using the slope formula
m = [tex]\frac{y_{2}-y_{1} }{x_{2}-x_{1} }[/tex]
with (x₁, y₁ ) = (1, - 2) and (x₂, y₂ ) = (2, 2) ← 2 points on the line
m = [tex]\frac{2-(-2)}{2-1}[/tex] = [tex]\frac{2+2}{1}[/tex] = [tex]\frac{4}{1}[/tex] = 4
the line crosses the y- axis at (0, - 6 ) ⇒ c = - 6
y = 4x - 6 ← equation of line
Given figure below as well as the fact that a is parallel to b what is the value of x?
Answer:
17
Step-by-step explanation:
The value of x from the angles between given parallel line is 17.
What are consecutive angles in between two parallel lines?Consecutive angles lie along the transversal, both angles will always be on one side of the transversal, and they'll either both be inside the parallel lines or outside the parallel lines (interior or exterior angles, respectively). Consecutive angles are always supplementary if the transversal crosses parallel lines.
From the given figure, we have two angles 2x+5 and 8x+5.
As we know, sum of consecutive angles is 180°
Now, 2x+5+8x+5=180
10x+10=180
10x=170
x=17
So, 2x+5=39° and 8x+5=141°
Therefore, the value of x from the angles between given parallel line is 17.
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use theorem 9.11 to determine the convergence or divergence of the p-series. 1 1 4 8 1 4 27 1 4 64 1 4 125
The given p-series 1 + (1/[tex]\sqrt[4]{2^{3} }[/tex]) + (1/[tex]\sqrt[4]{3^{3} }[/tex]) + (1/ [tex]\sqrt[4]{4^{3} }[/tex])+ (1/ [tex]\sqrt[4]{5^{3} }[/tex]) is divergent as the value of is equal to 3/4 ⇒p < 1.
As given in the question,
Given p-series is equal to :
1 + (1/[tex]\sqrt[4]{2^{3} }[/tex]) + (1/[tex]\sqrt[4]{3^{3} }[/tex]) + (1/ [tex]\sqrt[4]{4^{3} }[/tex])+ (1/ [tex]\sqrt[4]{5^{3} }[/tex])
As value of 1³ = 1 and fourth root of 1³ is equal to 1.
We can substitute 1 = (1 /fourth root of 1³) which is equal to
= (1/ [tex]\sqrt[4]{1^{3} }[/tex] ) + (1/[tex]\sqrt[4]{2^{3} }[/tex]) + (1/[tex]\sqrt[4]{3^{3} }[/tex]) + (1/ [tex]\sqrt[4]{4^{3} }[/tex])+ (1/ [tex]\sqrt[4]{5^{3} }[/tex])
Apply nth formula we get,
= [tex]\sum\limits^\infty_0 {\frac{1}{\sqrt[4]{n^{3} } } }[/tex]
⇒ p = 3/4
And 3/4 < 1
⇒ p < 1
⇒P-series is divergent.
Therefore, as the value of p =3/4<1 the given series 1 + (1/[tex]\sqrt[4]{2^{3} }[/tex]) + (1/[tex]\sqrt[4]{3^{3} }[/tex]) + (1/ [tex]\sqrt[4]{4^{3} }[/tex])+ (1/ [tex]\sqrt[4]{5^{3} }[/tex]) is divergent.
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TRUE OR FALSE cedric needs to find the surface area of the triangular prism. there is a piece of information missing you need to find it before you can solve the problem.
It is true, we have to find the surface area of the triangular prism we have to find a piece of information that is missing.
In the given question we have to find the surface area of the triangular prism.
We have to follow the some step to find the surface area of the triangular prism.
Step 1: Calculate the values of b(1), b(2), and b(3), the triangle base's three sides. Additionally, calculate the values of h, the triangle base's height, and l, the prism's length (the length between the bases).
Step 2: Use the formula for calculating the area of a triangle (A=1/2bh), where b is one of b(1), b(2), or b(3), to determine the area of a triangular base (whichever one is perpendicular to h). Given that this region contains two triangle bases, multiply the result by two.
Step 3: Multiply the perimeter of a base triangle by the prism's length to find the area of its rectangular sides: A=(b(1)+b(2)+b(3))l.
Step 4: Combine the outcomes from steps 3 and 4. This is the surface area of the triangular prism.
Since the question is not clear so I have write the step to find the area of triangular prism. Using this method we can find the area of triangular prism.
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barttleby rework problem 17 from section 5.1 of your text, involving the production of basketballs. assume that the number of defective basketballs produced is related by a linear equation to the total number produced. suppose that 7 defective balls are produced in a lot of 275, and 14 defective balls are produced in a lot of 375. find the number of defective balls produced in a lot of 600 balls.
the number of defective balls produced in a lot of 500 balls is 26 when 7 defective balls are produced in a lot of 275, and 14 defective balls are produced in a lot of 375
what is linear equation ?A linear equation is a first-order (linear) term plus a constant in the algebraic form y=mx+b, where m is the slope and b is the y-intercept.
calculation
let y be the number of defective basket balls
x be the total number of basketball produced
let y1 = 12 , x2 = 200
y2 = 19 , x2 = 350
since its given that no. of defective basketballs produced is related by a linear equation to the total no. of produced we have
y = mx +c
m = 19 - 12 / 350 - 200 = 7/150
y = 7x/150 + c
put x = 200 , y = 12
12 - 7 * 200/ 150 = c
c = 8/3
y = 7x /150 + 8 /3 ...........1
no. of defective balls produced in a lot of 500 balls
y (500) = 7*500/150 + 8/3
= 70/3 + 8 /3 = 78/3 = 26
the number of defective balls produced in a lot of 500 balls is 26 when 7 defective balls are produced in a lot of 275, and 14 defective balls are produced in a lot of 375
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f(x)= 4x2 -3x-16
find f(-2)
For the function f(x)=4x²-3x-16 then value of f(-2) is 6.
What is a function?A relation is a function if it has only One y-value for each x-value.
The given function is f(x)=4x²-3x-16.
f of x equal to four times of x square minus three times of x minus sixteen.
We need to find the value of f(-2).
We need to replace the value of x with -2.
f(-2)=4(-2)²-3(-2)-16.
=4(4)+6-16
=16+6-16
=6
Hence, the value of f(-2) is 6 for the function f(x)=4x²-3x-16.
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What values of x make the inequality x² + 5x > 6 true?
A. -6 < x < 1
B.
-3 < x < -2
C.x < -6 0
D. x < -3 or x>-2
The solution is Option A.
The values of x that makes the inequality equation x² + 5x > 6 is -6 < x < 1
What is an Inequality Equation?
Inequalities are the mathematical expressions in which both sides are not equal. In inequality, unlike in equations, we compare two values. The equal sign in between is replaced by less than (or less than or equal to), greater than (or greater than or equal to), or not equal to sign.
In an inequality, the two expressions are not necessarily equal which is indicated by the symbols: >, <, ≤ or ≥.
Given data ,
Let the inequality equation be represented as A
Now , the value of A is
x² + 5x > 6 be equation (1)
Now , on simplifying the equation , we get
Subtracting 6 on both sides of the equation , we get
x² + 5x - 6 > 0
On factorizing the equation , we get
x² + 6x - x - 6 > 0
Taking the common terms in the equation , we get
x ( x + 6 ) - 1 ( x + 6 ) > 0
( x - 1 ) ( x + 6 ) > 0
So , the values of x are
x + 6 > 0
Subtracting 6 on both sides of the equation , we get
x > -6
And ,
x - 1 < 0
Adding 1 on both sides of the equation , we get
x < 1
So , the inequality equation is true when x < 1 and when x > -6
Hence , the inequality equation is -6 < x < 1
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i don’t who’s reporting this question but stop, this question isn’t even my question i’m trying to help someone else out by posting it for them. can someone answer this and the two other questions i posted today too?
Answer:
a) 1 degree above
b) 4 degrees below
c) 12 degrees above
d) 7 degrees above
Step-by-step explanation:
please helppp.
Find the function that is finally graphed after the following transformations are applied to the graph of y=√x in the order listed.
(1) Vertical stretch by a factor of
(2) Shift up 1 unit
(3) Shift left 5 units
Y= ????
The final function after the transformations are applied to the graph of y =√x is y = 2√(x - 5) +1.
What is transformation?
A point, line, or geometric figure can be transformed in one of four ways, each of which affects the shape and/or location of the object. Pre-Image refers to the object's initial shape, and Image, after transformation, refers to the object's ultimate shape and location.
Rule of transformation:
g(x) = c f(x+a) + b
If c > 1, then f(x) vertically starched by c factor. If 0< c < 1, then f(x) vertically compressed by c factor.
If a>0, then f(x) is shifted horizontally a unit right side. If a<0, then f(x) is shifted horizontally a unit left side.
If b>0, then f(x) is shifted vertically b unit upward. If a<0, then f(x) is shifted vertically b unit downward.
Putting c = 2, a = -5, b = 1, and f(x) = √x
y = 2√(x - 5) +1
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Write the sentence as an equation.
126 is equal to 26 fewer than the product of 41 and w
NEED ANSWER ASAP
Two angles form a linear pair, the sum of one angle plus 27 is equal to two times the sum of the other angle
The pair of Linear angles are 51° and 129°.
What are Linear Angles:When two lines intersect at a point then they will form two linear angles. The sum of angles of a linear pair is always equal to 180°. Such angles are also known as supplementary angles.
In other words, if the sum of two adjacent angles is 180° then the pair of angles are said to be Linear Angles.
Here we have
Two angles form linear angles
Let x and y be the two angles
=> x + y = 180 ------ (1) [ since both are linear angles ]
Given that the sum of one angle plus 27 is equal to two times the sum of the other angle
=> x + 27 = 2y
=> x = (2y - 27) ---- (2)
Substitute (2) in (1)
=> 2y - 27 + y = 180
=> 3y = 153
=> y = 153/3
=> y = 51
Now substitute y = 51 in (1)
=> x + 51 = 180
=> x = 180 - 51
=> x = 129
The pair of Linear angles are 51° and 129°.
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What is the image of (10,-6) after a dilation by a scale factor of 1/2 centered at the origin?
The image of (10,-6) after dilation by a scale factor of 1/2 centered at the origin is (-5,-3).
What is dilation?
A dilation is a function f from a metric space M into itself that, for any points x, y in M, fulfills the identity d=rd, where d is the distance between x and y and r is a positive real number. Such a dilatation is a resemblance of the space in Euclidean space.
Here, we have
Given
The image of (10,-6) after dilation by a scale factor of 1/2 centered at the origin.
We have to find the image after dilation.
The coordinates of an image (-10,-6), dilating the coordinate by 1/2 means reducing the image by multiplying each coordinate by the factor of 1/2.
Image = (1/2(-10), 1/2(-6))
Image = (-5,-3)
Hence, the image of (10,-6) after dilation by a scale factor of 1/2 centered at the origin is (-5,-3).
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Use spherical coordinates. Evaluate
âˆB(x2+y2+z2)2dVâˆB(x2+y2+z2)2dV,
where B is the ball with center the origin and radius 1.
PLEASE HELP MEE!!
What is the inverse of the function shown?
The inverse of the function shown is (x + 5).
What is the inverse of the function?
A function that can reverse into another function is known as an inverse function or anti-function. In other words, the inverse of a function "f" will take y to x if any function "f" takes x to y. When a function is written as "f" or "F," its inverse is written as "[tex]f^{-1}[/tex]" or "[tex]F^{-1}[/tex]." Here, (-1) should not be confused with an exponent or a reciprocal.
Coordinates of the given line are (8,3) and (-2,-7)
The function of the given graph for two points form is
[tex]y-y_{1} = \frac{y_{2}-y_{1} }{x_{2} -x_{1}} (x-x_{1} )[/tex]
or, [tex]y-3 = \frac{-7-3 }{-2-8} (x-8 )[/tex]
or, y - 3 = x - 8
or, y = x -8 + 3 = x - 5
y = x - 5
To find the inverse, replace x with y and y with x then, we get
x = y - 5
y = x + 5
[tex]f^{-1}[/tex] = x + 5
Hence, the inverse of the function shown is (x + 5).
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Use the information to answer the question.
A spinner contains 10 equal-sized sections. The sections are colored red, green, black, or orange. The spinner is spun 50 times. The spinner
landed on:
• red 19 times
green 11 times
• black 4 times
orange 16 times
Based on these results, how many sections are most likely each color on the spinner? Enter the answers in the boxes.
Color Number of Spinner Sections
Red
Green
Black
Orange
The number of sections that are most likely on each color on the spinner are
Red = 4Green = 2Black = 1Orange = 3How many sections are most likely each color on the spinner?From the question, we have the following parameters that can be used in our computation:
Number of times the spinner is spun = 50 times
The outcomes are
Red = 19 timesGreen = 11 timesBlack = 4 timesOrange = 16 timesNumber of sections = 10
The section of each color is then calculated as
Color = Color outcomes/Number of times * Number of sections
Using the above as a guide, we have the following:
Red = 19/50 * 10 = 3.8
Green = 11/50 * 10 = 2.2
Black = 4/50 * 10 = 0.8
Orange = 16/50 * 10 = 3.2
Approximate
Red = 4
Green = 2
Black = 1
Orange = 3
The above represents the possible sections
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Given the ellipse with equation substitute the x-values from the table into the equation to obtain y-values, rounded to the nearest integer.
The value of y when X value is -1 would be = -5
What is substitution equation method?The substitution equation method is the method of solving equation whereby a value is being simplified and substituted into the second equation to obtain the next unknown value.
From the given equation:
(x-2)²/16 - (y-4)²/9 = 1
Take X = -1 and substitute X for -1 into the given equation,
(-1-2)²/16 - (y-4)²/9 = 1
9/16 - (y-4)²/9 = 1
(y-4)²/9 = 9/16- 1
(y-4)²/9 = -7/16
Cross multiply
(y -4)² = 9(-7)/16
y²+16 = -63/16
16(y²+16) = -63
16y²+256 = -63
16y² = -319
y² = -319/16
y² = -20
y= -√20
y = -4.5
y = -5
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The triangle and the rectangle below have the same area.
Calculate the value of w.
Show your working.
Answer:5 cm
Step-by-step explanation:
Answer: w=2.5cm
Step-by-step explanation:
when solving for a right triangle, you need to to the length multiplied by the width and then divided by two. You then get (6*5)/2=30/2=15.
When solving for a rectangle, it’s the same, but without dividing by two. But you need them to be equal, and you already have the measure six.
So 5/2=2.5 therefore w=2.5cm.
10. use the division algorithm to divide 116 by 3, and then, based on your work, determine which of the following statements is true. (a) q
By using the division algorithm to divide 116 by 3 will be 38.
The given integers a and b are 116 and 3 respectively.
Let q be the counter variable and r be the variable to store the new dividend after each loop.
Division algorithm,
If a<b
return 0;
else
q = 0;
r = a;
repeat
q = q+1;
r = r-b;
until r<b;
return q, r;
Working:
116 is not less than 3, implies
r = 116 -3 = 113
q = 0+1=1
Repeating until we get q = 38, r = 2 = a
2<3, hence returns q = 38, r =2
The question is incomplete, the complete question is:
use the division algorithm to divide 116 by 3, and then, based on your work, determine which of the following statements is true.
(a) q = 39 (b) q =32 (c) q = 38
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A recent survey, 35 percent indicated chocolate was their favorite flavor of ice cream. Suppose we select a sample of ten people and ask them to name their favorite flavor of ice cream. a. How many of those in the sample would you expect to name chocolate? b. What is the probability exactly four of those in the sample name chocolate? c. What is the probability four or more name chocolate?
a. You would expect 3.5 of those in the sample to name chocolate.
b. The probability exactly four of those in the sample name chocolate is 0.2438.
c. The probability four or more name chocolate is 0.5829..
a. If 35% of people in the general population indicate that chocolate is their favorite flavor of ice cream, then we would expect 35% × 10 = 3.5 people in a sample of 10 to name chocolate as their favorite flavor. Since we cannot have a fractional number of people, we can round this down to 3 people.
b. The probability that exactly 4 people in a sample of 10 name chocolate as their favorite flavor can be calculated using the binomial distribution. The probability of each individual event (i.e., a person naming chocolate as their favorite flavor) is 0.35, and there are 10 total events. The probability of exactly 4 successes (people naming chocolate as their favorite flavor) is given by the formula:
(10 choose 4) × ([tex]0.35^4[/tex]) × ([tex]0.65^6[/tex])
Where "choose" denotes the binomial coefficient, and the exponent indicates the number of times each event occurs. Plugging in the values, we get:
(210) × (0.0036125) × (0.274625) = 0.2438
So the probability that exactly 4 people in the sample name chocolate as their favorite flavor is approximately 0.2438.
c. To calculate the probability that 4 or more people in the sample name chocolate as their favorite flavor, we can use the same formula as above, but sum the probabilities for each possible number of successes greater than or equal to 4. For example, the probability of 4 successes is given by:
(10 choose 4) × ([tex]0.35^4[/tex]) × ([tex]0.65^6[/tex])
The probability of 5 successes is given by:
(10 choose 5) × ([tex]0.35^5[/tex]) × ([tex]0.65^5[/tex])
And so on. Summing the probabilities for each possible number of successes greater than or equal to 4, we get:
0.2438 + 0.1933 + 0.1047 + 0.0380 + 0.0081 = 0.5829
So the probability that 4 or more people in the sample name chocolate as their favorite flavor is approximately 0.5829.
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Suppose the heights of 18-year-old men are approximately normally distributed, with mean 69 inches and standard deviation 6 inches. If a random sample of fifteen 18-year-old men is selected, what is the probability that the mean height x is between 68 and 70 inches? (Round your answer to four decimal places.)
The probability that the mean height x is between 68 and 70 inches is found as 37.28%.
What is meant by the term z score?The z-score effectively represents the standardized distance in units of "number standard deviations" between the raw score (procured from a population assuming a normal distribution) as well as the population mean.The z-score is written as follows:
z = (x - μ)/σ
In which,
x = between 68 and 70 inches.
μ = mean 69 inches
σ = standard deviation 6 inches
Put the values in the formula,
Probability that the mean height x is between 68 and 70 inches
P(68 < x < 70) = (68 - 69 / 6) < z < (70 - 69 / 6)
P(68 < x < 70) = (-0.16) < z < (0.16)
P(68 < x < 70) = 0.4364 - 0.0636
P(68 < x < 70) = 0.3728
P(68 < x < 70) = 37.28%
Thus, the probability that the mean height x is between 68 and 70 inches is found as 37.28%.
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slope of a line perpendicular to y=-4x-7
Because the slope of the supplied line is -4, the needed slope of a line perpendicular to y=-4x-7 is 1/4.
What is slope of line?The slope of a line indicates its steepness. Slope is computed mathematically as "rise over run" (change in y divided by change in x). The slope of a line is its steepness as it goes from LEFT to RIGHT. Slope is the ratio of a line's rise, or vertical change, to its run, or horizontal change. The slope of a line is always constant (it never changes) no matter what 2 locations on the line you select. The slope-intercept form of an equation occurs when the equation of a line is stated in the form y = mx + b.
Here,
y=mx+c
m=-4
slope of a line perpendicular to y=-4x-7,
m1=1/4
The required slope of a line perpendicular to y=-4x-7 will be 1/4 as the slope of given line is -4.
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In the gymnastics competition, Jill earned nine and six-sevenths points. Alice earned eight and two-thirds points. How many more points did Jill earn than Alice?
Answer:
[tex]\boxed{1.1914285714285713}[/tex]
Step-by-step explanation:
Jill earned a total of 9 + 6/7 = <<9+6/7=9.857142857142857>>9.857142857142857 points.
Alice earned a total of 8 + 2/3 = <<8+2/3=8.666666666666666>>8.666666666666666 points.
Therefore, Jill earned 9.857142857142857 - 8.666666666666666 = <<9.857142857142857-8.666666666666666=1.1914285714285713>>1.1914285714285713 more points than Alice. Answer: \boxed{1.1914285714285713}.
Alice earned approximately 1.19 points more than Jill.
To find the difference between the number of points earned by Jill and the number of points earned by Alice, we need to first convert both amounts to a common denominator.
Since the denominators of the fractions representing the number of points earned by Jill and Alice are different, we will need to find a common denominator. To do this, we can find the least common multiple (LCM) of 7 and 3, which is 21.
We can then rewrite the fraction representing the number of points earned by Jill as 9 + 6/7 = (9 * 3 + 6)/21 = 27/21 + 6/21 = 33/21, and the fraction representing the number of points earned by Alice as 8 + 2/3 = (8 * 7 + 2)/21 = 56/21 + 2/21 = 58/21.
To find the difference between the number of points earned by Jill and the number of points earned by Alice, we can subtract the number of points earned by Alice from the number of points earned by Jill:
33/21 - 58/21
We can simplify this expression by combining like terms:
(33 - 58)/21 = -25/21
This represents a difference of -25/21 points, or approximately -1.19 points. Since a negative difference represents a smaller quantity, this means that Alice earned approximately 1.19 points more than Jill.
se the following information for questions 31-34: The average GPA for all college students in the United States as of 2006 was 3.11. We want to test to see if the GPA of students at Texas A&M is higher than the national average. Suppose we survey 47 randomly selected students at Texas A&M and the average GPA is 3.27, with a standard deviation of 0.54. Assuming all conditions are met, conduct a hypothesis test at the 0.01 significance level.
Which of the following below best describes the p-value?
a. p value = 0.0424
b. 0.02 < p-value < 0.025
c. p-value = 0.9788
d. 0.04 < p-value < 0.05
e. p-value = 0.0212
The best option which describes the p-value is 0.02 < p-value < 0.025.
We know that for the p-value method,
Z = (Sample Mean - Population Mean) / (standard deviation/sqrt (number of selections))
The average GPA for all the college students in the United States as of 2006 = 3.11 (Sample Mean)
The average GPA of randomly selected students at Texas A&M
= 3.27 (Population Mean)
Number of students randomly selected = 47
Standard deviation of them = 0.54
Therefore, Z = (3.27-3.11)/ (0.54/ sqrt(47)) = 2.031
Hence, by right tailed test,
p = 0.024
which implies, 0.02 < p-value < 0.025.
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What is the equation of the circle shown on the graph
The equation of the circle shown on the graph is (x + 2)² + (y - 1)² = 4.
What is an equation of a circle?
A circle can be characterized by its centre's location and its radius's length.
Let the center of the considered circle be at the (h, k) coordinate.
Let the radius of the circle be 'r' units.
Then, the equation of that circle would be:
(x - h)² + (y - k)² = r²
The center of the circle is at (-2, 1) and the radius of the circle is 2 units. Then the equation of the circle will be
(x - (-2))² + (y - 1)² = 2²
(x + 2)² + (y - 1)² = 2²
(x + 2)² + (y - 1)² = 4
Hence, the equation of the circle shown on the graph is (x + 2)² + (y - 1)² = 4.
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David says that a triangle with side measures 9 cm, 12 cm, and 17 cm is a right triangle. Susie says it is not. Who is correct? Explain
your reasoning.
12 cm
17 cm
9 cm
Susie is correct as it is not a right triangle
How to prove the nature of the triangle?According to Pythagoras theorem, In a right triangle ,the square of the hypotenuse side in a right-angled triangle equals the sum of the squares of the other two sides.Here let the hypotenuse side = 17 (longest )
Square of the hypotenuse side = 289
Squares of the other two sides = 12 * 12 = 144
=9 * 9 = 81
Sum of the squares of the other two sides = 144 + 81
= 225
So, here 225 ≠ 289
The square of the hypotenuse side of this triangle does not equal the sum of the squares of the other two sides. So this is not a right triangleThus, Susie is correct as it is not a right triangle.To learn more about Pythagoras theorem, refer:
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A study is conducted to estimate the average difference in the cost of analyzing data using two different statistical packages. To do so, 15 data sets are used. Each is analyzed by each package, and the cost of the analysis is recorded. These observations result: (a) Find the set of difference scores subtracting in the order package I minus package II. (b) Find d and Sd(c) Find a 90% confidence interval on the mean difference in the cost of running a data analysis using the two packages.
The null hypothesis cannot be rejected.
Given that,
A study is done to determine the average cost difference between utilizing two different statistical tools to analyze data. 15 data sets are used to do this. Each program performs an analysis on each, and the cost of the analysis is noted.
To test if cost is same, we test mean difference of scores =0
H0: d=0
H0: d != 0
z0 = 0-(-05467) / 0.039976
= 1.367
z score for alpha = .05 is 1.96
Since, z0 < z score, we cannot reject the null hypotheses
Therefore, the null hypothesis cannot be rejected.
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Solve for x in the triangle. Round your answer to the nearest tenth.
Answer: 2.795
Step-by-step explanation:
[tex]cos 56= \frac{x}{5}[/tex]
7. Julian tracks his progress on his reading
quizzes over a period of four weeks. Which
list shows his scores from greatest to least?
WEEK 4
WEEK 1 WEEK 2 WEEK 3
9
17
20
10
A. Week 3, 4, 1, 2
B. Week 2, 1, 3, 4
C. Week 4, 3, 1, 2
D. Week 2, 1, 4, 3
75%
0.65
The list that shows his scores from greatest to least is B. Week 2, 1, 3, 4
How to illustrate the number?From the information, Julian tracks his progress on his reading quizzes over a period of four weeks. The list is given below:
Week 1 = 17
Week 2 = 20
Week 3 = 10
Week 4 = 9
It should be noted that we want to arrange from greatest to lowest. This will be 20, 17, 10 and 9. Therefore, the correct option is B
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what is the square root of -75 in simplified form
Answer:
5[tex]\sqrt{3}[/tex]i
Step-by-step explanation:
[tex]\sqrt{-5(5)(3)}[/tex] You can pull out a 5 and you are left with [tex]\sqrt{-1}[/tex] and [tex]\sqrt{3}[/tex].
The [tex]\sqrt{-1}[/tex] = 1
5[tex]\sqrt{3}[/tex] i
Answer: [tex]5\sqrt{3} i[/tex]
Step-by-step explanation:
The square root of -75 is not a real number, because it is not possible to find a real number that when squared results in a negative number.
In mathematics, the square root of a number is defined as the number that, when multiplied by itself, equals the original number. For example, the square root of 4 is 2, because 2 x 2 = 4. Similarly, the square root of 9 is 3, because 3 x 3 = 9.
However, it is not possible to find a real number that, when squared, results in a negative number. This is because any real number multiplied by itself is always positive, regardless of whether the original number was positive or negative. For example, the square of -2 is 4, because (-2) × (-2) = 4, which is a positive number.
Double however, complex numbers are used to represent numbers that have a non-zero imaginary component, such as the square root of -1. Complex numbers are written in the form a + bi, where a and b are real numbers and i represents the imaginary unit.
Therefore, the square root of -75 can be written in simplified form as [tex]5\sqrt{3} i[/tex], where [tex]i[/tex] is the imaginary unit. This represents a complex number with a real component of 0 and an imaginary component of [tex]5\sqrt{3}[/tex].
given a binary-class classification problem in which the class labels are binary, the dimension of feature is d, and each attribute can take k different values. please provide the numbers of parameters to be estimated with and without the simplifying assumption. please explain your answer. briefly justify why the simplifying assumption is necessary.
For binary class classification, assumptions are necessary in a way:
Given that
From Boyer Naive classifier,
We evaluate (ai | vj) is given below
(ai | vj) = n(e) + m(p) / n + m
Here,
m = equivalent sample size
n(e) = number of training examples
for which v = vj and a = ai
n(i) = number of training example for which v = vj
P = a prior estimate for P(ai | vj)
Here, we calculate that
P(SUV | yes), P(Red | yes), P(Domestic | yes)
P(SUV | no), P(Red | no), P(Domestic | no)
We evaluating this value like
yes:
RED : SUV: DOMESTIC:
n = 5 n = 5 n = 5
n(c) = 3 n(c) = 1 n(c) = 2
P = 0.5 P = 0.5 P = 0.5
m = 3 m = 3 m = 3
Therefore, with the above calculation we can justify that the simplifying assumptions are necessary in a binary class classification.
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The population of Kingsfield grew from 7,500 to 9,000
in one year. During the same time the population of
Queensville dropped from 32,000 to 25,600. Let the
original populations represent year 1. If these percentage
rates of decline and growth continue, during what year will
Kingsfield have a larger population than Queensville?
The time that it will take for Kingsfield to have a larger population than Queensville is given as follows:
3.58 years.
How to model the populations?The rates of decline and growth are constant, meaning that the populations for each town are modeled by exponential functions.
The rates for each town are given as follows:
Kingsfield: 9000/7500 = 1.2.Queensville: 25600/32000 = 0.8.Considering the initial population, the exponential functions for the population of each town after t years are given as follows:
Kingsfield: y = 7500(1.2)^t.Queensville: y = 32000(0.8)^t.Kingsfield will have a larger population than Queensville when:
[tex]7500(1.2)^t > 32000(0.8)^t[/tex]
Hence:
[tex]\left(\frac{1.2}{0.8}\right)^t > \frac{32000}{7500}[/tex]
(1.5)^t > 4.27
tlog(1.5) > log(4.27)
t > log(4.27)/log(1.5)
t > 3.58 years.
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