A student believes there is a correlation between the number of texts sent during class and gpa. the student collected data and found that the line of fit can be modeled by the equation ŷ = 3.9 − 0.1x. identify and interpret the slope in this scenario. the slope is 3.9. starting at 0.1, the gpa will increase by 3.9 for every text sent in class. the slope is 3.9. starting at 0.1, the gp will decrease by 3.9 for every text sent in class. the slope is −0.1. starting at 3.9, the gpa will increase by 0.1 for every text sent in class. the slope is −0.1. starting at 3.9, the gpa will decrease by 0.1 for every text sent in class.

The average change in temperature per hour is 7.1°.

Given, the temperature in a certain city changed to 34.084°F

over 4.8 hours.

the average change in temperature per hour = ?

average temperature = change in temperature/time taken.

= 34.08/4.8

= 71/10

= 7.1°f

the change in temperature is 7.1°f

Hence the change in temperature per hour is 7.1°f.

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Answer:

Brand B

Explanation:

The cost for each brand is given below:

• Brand A: 20 ounces for $2.50

• Brand B: 32 ounces for $3.25

To determine the price per ounce for each brand, divide the cost by the number of ounces.

This, we see that Brand B has the lowest price per ounce.

Answer:

D)  68

Step-by-step explanation:

PEMDAS

The PEMDAS rule is an acronym representing the order of operations in math:

Given expression:

72 - 9 ÷ 3 · 2 + 2

Following the order of operations, carry out the multiplication and division first, working from left to right.

Divide 9 by 3:

⇒ 72 - 9 ÷ 3 · 2 + 2

⇒ 72 - 3 · 2 + 2

Multiply 3 by 2:

⇒ 72 - 3 · 2 + 2

⇒ 72 - 6 + 2

Now carry out the addition and subtraction, working from left to right.

Subtract 6 from 72:

⇒ 72 - 6 + 2

⇒ 66 + 2

Add 66 and 2:

⇒ 66 + 2

⇒ 68

Solution

72 - 9 ÷ 3 · 2 + 2 = 68

Answer:

d

Step-by-step explanation:

Answer:

The answer would be 1.9

There really is no way to show the work on this problem since it is decimals

A)  The conditional relative frequency of a student who plans to live at home, given that they plan to attend college is; 53.85%

B) Yes,  there is an association between attending college and living at home.

A conditional relative frequency is calculated by dividing a frequency that is not in the Total row or the Total column by the frequency's row total or column total.

A) From the definition above, the conditional relative frequency of a student who plans to live at home, given that they plan to attend college is; 35%/65% = 7/13 = 53.85%

B) Yes there is an association between attending college and living at home because the percentage of students who plans to live at home, given that they plan to attend college over half of those is more than 50%.

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The equation of the polynomial function is y = x² + x - 2

The polynomial function is represented on the given graph

From the graph, we can see that:

The curve of the graph crosses the x-axis at the following points

x = -2 and x = 1

This means that the equation of the polynomial function can be calculated as

y = (x - x₁) * (x  - x₂)

Where

x₁ = -2 and x₂ = 1

Substitute x₁ = -2 and x₂ = 1 in the equation y = (x - x₁) * (x  - x₂)

So, we have

y = (x + 2) * (x  - 1)

Open the brackets

y = x² + 2x - x - 2

Evaluate

y = x² + x - 2

Hence, the equation is y = x² + x - 2

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98,075,643,476

Step-by-step explanation:

I add 20 to 56 and the answer is thos

Answer:

17, 19 & 21

Step-by-step explanation:

Answer:

the answers i found were 17, 19 and 21

Answer:

2.5kg potatoes would approx. cost 4.23$

Step-by-step explanation:

cost of 1kg potato = 1.69$

Therefore, cost of 2kg of potato = 1.69X2

                                                      =3.38

cost of 0.5kg of potato = 1.69\2

                                      = 0.85

Total cost of 2.5kg potato = 2kg + 0.5kg

                                           = 3.38 + 0.85

                                           = 4.23$

Answer:

$4.225

Step-by-step explanation:

2.5kg times per 1.60kg

2.5x1.6=4.225

The perimeter of the rectangle is 29t + 5

Define Perimeter.

A perimeter is a closed path that encompasses, surrounds, or outlines either a two dimensional shape or a one-dimensional length. The perimeter of a circle or an ellipse is called its circumference.

Given,

width = 7t - 7.5

length = 7.5t + 10

we know, the perimeter of the rectangle (p) = 2 ( l + w)

put the value in given formula,

p = 2 * (7.5t + 10 + 7t - 7.5)

p = 2 * ( 14.5t  + 2.5)

p = 2 * 14.5t + 2.5 * 2

p = 29t + 5

Hence, the perimeter of the rectangle is 29t + 5

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The factorization of the quadratic expression 25x² - 4 gives us (5x + 2)(5x - 2) where; x = -2/5 or 2/5

We are given the quadratic equation as;

25x² - 4

Now, this quadratic equation can be written as;

25x² + 10x - 10x  - 4

We can group this using algebra properties to get;

(25x² + 10x) - (10x + 4)

Collecting like terms gives us;

5x(5x + 2) - 2(5x + 2)

Thus, the factorization is;

(5x + 2)(5x - 2)

The values of x will be;

5x + 2 = 0

x = -2/5

Or 5x - 2 = 0

x = 2/5

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Answer:

First five multiples of 20 are: 20,40,60,80 and 100.

First five multiples of 30 are: 30,60,90,120, and 150.

Answer: for 20 it is 20,40,60,80,100

For 30 it is 30,60,90,120,150

Step-by-step explanation:

here’s another way you can multiply 20 and 30 by 1 and above hope this will help

The slope of a line indicates how steep it is. Slope is defined mathematically as "rise over run" (change in y divided by change in x).

slope of the line  = -5/4.

The line pass through the points (-3, 2) and (1, -3)

The formula for finding slope from two points (x₁, y₁) and (x₂, y₂) on a line is m = (y₂ - y₁) / (x₂ - x₁). Here, m = slope of the line

m = -3-2/1 +3 = -5/ 4

slope of the line  = -5/4.

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Answer:

Step-by-step explanation:

We are given the volume formula:

Find the height:

Substitute all into formula:

You may keep it as is or simplify:

a. Connect S to C and A.

b. The shoe store

c. If a book is a paperback, then it is on sale. If a book is on sale, then its sale price is 20% off the original price.

d. If a book is a paperback, then its sale price is 20% off the original price

Any diagram that conveys mathematical concepts is referred to as a math diagram. This includes both simple charts and graphs and complex logic and geometrical diagrams. A visual aid can help you understand math and science concepts.

Two parallel columns make up a mapping diagram. The first column represents a function's domain, and the second column its range. To represent the relationship between any two elements, lines or arrows are drawn from domain to range.

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Data:

Quiz taken: 16

Quiz each week: 1

You can express this as a equation:

Q= Total of quizes taken

W= weeks

As each week the number of quizes Q increase in 1 the change is k=1, and Isabela has already taken 16 quizzes. The number of quizzes can be represented as:

Q0 is the number of quizzes Isabela has already taken.

Then, to have a total of 26 quizzes Isabela have to attend:

Q=26

W=?

You can find the number of weeks by clearing of the equation above the W:

Substract in both sides of the equation 16:

The volume of the spherical rubber ball to the nearest cubic inch is 87.11 cubic inches.

The capacity of a sphere is its volume. It is the area that the sphere occupies. Cubic measurements for sphere volume include m^3, cm^3, and in^3.

The formula of volume of the sphere is

V = 4/3πr3

given that the radius of spherical rubber ball is 2 3/4

here the radius is given in improper fraction

now convert it into the decimal by following procedure.

first multiply the 2 with 4

2 X 4 = 8

now add 8 to 3. 8 + 3 = 11

The proper fraction of 2 3/4 is 11/4.

so, the decimal number is 2.75

now put r = 2.75 in formula to get the volume.

V = 4/3 X 3.14 X 2.75 X 2.75 X 2.75

V = 1.33333 X 3.15 X 20.7968

V = 87.11 cubic inches

Hence,the volume of the spherical rubber ball to the nearest cubic inch is 87.11 cubic inches.

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The required measure of x and y for the concurrent triangle is 4 and 2 respectively.

In congruent geometry, the shapes that are so identical. can be superimposed on themselves.

here,
Since the triangle is are concurrent triangle,
x + 4 = 4y - - - - (1)
x = y + 2 - - - - (2)
Solving the above system of the equation,
y + 2 + 4 = 4y
6 = 3y
y = 6 / 3
y = 2
Now put this y in equation 2
x = 2 + 2
x = 4

Thus, the required measure of x and y for the concurrent triangle is 4 and 2 respectively.

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Answer:

-2

Step-by-step explanation:

hope this helps

Answer:

Slope = -2

Step-by-step explanation:

slope = (y2-y1) / (x2-x1)

choose 2 points

i choose (2, -1), and (5, -7)

slope = (-7 - (-1))/(5-2)

slope = (-6)/3

slope = -2

Answer:

Incomplete question

...

Answer:

346,990

Step-by-step explanation:

Answer:

-6 47/20

Step-by-step explanation:

It is listed below whether area or circumference needs to be calculated.

What is circumference?

The circumference of a circle or ellipse in geometry is its perimeter. That is, if the circle were expanded out and straightened out to a line segment, the circumference would be the length of the arc. The curve length around any closed figure is more often referred to as the perimeter. The term "circumference" can also refer to the circle's actual location, which corresponds to a disk's edge. A sphere's circumference is equal to the length of any one of its great circles. The distance around a circle is its circumference, however this cannot be used as a definition if, as in many introductory presentations, distance is defined in terms of straight lines.

(a) Circumference needs to be calculated.

(b) Area needs to be calculated.

(c) Area needs to be calculated.

(d) Circumference needs to be calculated.

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The measure of FG is 16 units.

The measure of FG can be found as follows:

GE is an angle bisector.

An angle bisector is a bisector that bisect angles into two equal halves.

Therefore,

GE bisect ∠FEH

Hence,

FG = GH

FG = x + 11

GH = 3x + 1

x + 11 = 3x + 1

11 - 1 = 3x - x

10 = 2x

x = 10 / 2

x = 5

Therefore,

FG = x + 11 = 5 + 11 = 16 units

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The function is increasing over the interval (-3,-1).

A table with x and f(x) values are given as:

x         f(x)

-6         34

-5          3

-4        -10

-3         -11

-2         -6

-1           -1

0           -2

1            -15

We have to check whether this function is increasing or not in the intervals  (–6, –3), (–3, –1), (–3, 0), (–6, –5).

A function is said to be increasing over an interval (x, y), if for x < y, it follows that f(x) < f(y).

Consider the intervals one-by-one.

For (-6, -3), we have the function values in between which are  34 > 3 > -10 > -11. So in this interval the function is not increasing but decreasing over the x-values in (-6, -3).

For (-3, -1), the corresponding function values are -11 < -6 < -1. Here the function values are increasing over the x-values in the interval (-3, -1).

For (-3,0), the corresponding function values are -11 < -6 < -1 >-2. Since we got -1 > -2 in the interval (-3,0), the function is not increasing here also.

For (-6,-5), the corresponding function values are 34 > 3. So the function is not increasing but decreasing.

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Different possible outcomes after rolling all six dice is equal to 36. Total number of possible outcomes for each trial is equal to 6.

As given in the question,

For Math Assignment

The total set of standard dice = 6

After rolling each dice,

Possible outcomes after each trial  = { 1,2,3,4,5,6 }

The total number of possible outcomes for each trial = 6

Different possible outcomes after rolling all six dice = 6 × 6

                                                                                = 36

Therefore, different possible outcomes after rolling all six dice is equal to 36. Total number of possible outcomes for each trial is 6.

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Answer:

[tex]\textsf{Slope-intercept form}: \quad y=-\dfrac{1}{4}x+30[/tex]

[tex]\textsf{Slope}: \quad -\dfrac{1}{4}[/tex]

[tex]\textsf{$y$-intercept}: \quad 30[/tex]

Step-by-step explanation:

[tex]\boxed{\begin{minipage}{6.3 cm}\underline{Slope-intercept form of a linear equation}\\\\$y=mx+b$\\\\where:\\ \phantom{ww}$\bullet$ $m$ is the slope. \\ \phantom{ww}$\bullet$ $b$ is the $y$-intercept.\\\end{minipage}}[/tex]

Given equation:

[tex]5x + 20y = 600[/tex]

To convert the given equation to slope-intercept form:

[tex]\boxed{\begin{array}{rccccccc}5x &+ & 20y & = & 600&&&\\-5x & & & && -5x &&\\\\\cline{1-8}\\& & \dfrac{20y}{20} & = & \dfrac{-5x}{20} & + & \dfrac{600}{20}\\\\&& y&=&-\dfrac{1}{4}x & + & 30\end{array}}[/tex]

[tex]\textsf{Slope-intercept form}: \quad y=-\dfrac{1}{4}x+30[/tex]

[tex]\textsf{Slope}: \quad -\dfrac{1}{4}[/tex]

[tex]\textsf{$y$-intercept}: \quad 30[/tex]

The answer is C y=x+8

I WILL USE THE METHOD OF ADDITIVE INVERSE.

[tex]t - 6 + 6 = 13 + 6 \\ t = 19[/tex]

ATTACHED IS THE SOLUTION

Answer:

Step-by-step explanation:

You need to see what 13 minus 6 is and that the T value then just plug it in. The answer is 7