Mary Ann and Abigail were shopping for prom shoes and wondered how the prices at Payless compared to the prices at Famous footwear. At each store, they randomly selected 30 pairs of shoes and recorded the price of each pair. The table shows summary statistics for the two samples of shoes. Do these data provide convincing evidence at the a=0.05 significance level that shoes cost less, on average, at payless than a Famous Footwear?

Answer: Y=-5x+3

Step-by-step explanation:

first slope= 0 on the x axis so -2-3=-5

to get 3 you can do 4-1=3 or 7-4 or even 1-(-2)!

Correct answer: [tex]y = 3x -5[/tex]

You don't have to use the whole table in order to find equation. You can use just two points on the table to start.

In order to find the slope, the formula for that is: [tex]\frac{y_{2}-y_{1}}{x_{2} - x_{1}}[/tex]. So, we can start with points (1, -2) and (2, 1). Label (1, -2) as [tex]x_{1}[/tex] and [tex]y_{1}[/tex]; label (2, 1) as [tex]x_{2}[/tex] and [tex]y_{2}[/tex]. Now we can plug the numbers into the formula.

[tex]\frac{1-(-2)}{2 - 1}[/tex] → [tex]\frac{3}{1}[/tex] → [tex]3[/tex] is the slope.

To find the y-intercept, substitute (1, -2) into [tex]y = 3x + b[/tex].

[tex](-2) = 3(1) + b[/tex]

[tex]-2 = 3 + b[/tex]

[tex]-3[/tex]   [tex]-3[/tex]

________

[tex]b = -5[/tex] is the y-intercept.

Thus, the slope-intercept equation is [tex]y = 3x -5[/tex]. Hope this helps :) Let me know if you have any other questions related to this problem!

Answer:

50 feet

Step-by-step explanation:

Set up a 3-dimensional coordinate system (see the attached image).

This setup shows an axis that runs North-South (South is negative, North is positive), an axis that runs East-West (East is positive, West is negative), and an axis that runs Up-Down (Up is positive, Down is negative).

The two points in question are then:

First person's location (12, -20, -12), and the second person's location is (-20, 10, 12).

The distance between two points  [tex]\left( x_1,\,y_1,\,z_1\right)[/tex]  and  [tex]\left( x_2,\,y_2,\,z_2\right)[/tex] is

[tex]d=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2+(z_2-z_1)^2[/tex]

[tex]d=\sqrt{(-20-12)^2+(10-(-20))^2+(12-(-12))^2}\\\\d=\sqrt{(-32)^2+30^2+24^2}\\\\d=\sqrt{2500}\\\\d=50[/tex]

Answer:

6⅓ ft²

Step-by-step explanation:

Area of the figure = area of a trapezoid

= ½(a + b)h

Where,

a = 11⅓ft = 34/3 ft

b = 34/3 + 15/2 = (68 + 45)/6 = 113/6 ft

h = 6 ft

Plug in the values

Area = ½(34/3 + 113/6)*6

= (34/3 + 113/6)*3

= (68 + 113)/3

= 181/3

= 6⅓ ft²

Answer:

a. 9/25

Step-by-step explanation:

A probability is the number of desired outcomes divided by the number of total outcomes.

In this question:

There are 5 + 7 + 9 + 4 = 25 shirts, 9 of which are red.

So 9/25 probability of being handed a red t-shirt, which means that the correct answer is given by option a.

Answer:

please send the picture of the question plz!

Step-by-step explanation:

Answer: 1 graph A

2 graph B

3 graph C

4 the number of sales a month

Step-by-step explanation:

Answer:

12 pies

Step-by-step explanation:

28/7 = 4

4 servings can be made

1 serving = 3 pies

3 × 4 = 12

hope this helps :)

Answer: D

Step-by-step explanation:

it goes up by one in sides , count the sides

Answer:

D. b = 3

Step-by-step explanation:

Given the following data;

Points on x-axis (x1, x2) = 10, 12

Points on y-axis (y1, y2) = 23, 27

First of all, we would determine the slope.

Mathematically, slope is given by the formula;

[tex] Slope = \frac{Change \; in \; y \; axis}{Change \; in \; x \; axis} [/tex]

[tex] Slope, m = \frac {y_{2} - y_{1}}{x_{2} - x_{1}} [/tex]

Substituting into the equation, we have;

[tex] Slope, m = \frac {27 - 23}{12 - 10} [/tex]

[tex] Slope, m = \frac {4}{2} [/tex]

Slope, m = 2

The equation of straight line is y = mx + b

Where;

m is the slope.

x and y are the points

b is the intercept.

To find the intercept, we would use the following formula;

y - y1 = m(x - x1)

Substituting into the formula, we have;

y - 23 = 2(x - 10)

y - 23 = 2x - 20

y = 2x - 20 + 23

y = 2x + 3 = mx + b

Therefore, intercept, b = 3

9514 1404 393

Answer:

  9 weeks

Step-by-step explanation:

In problems of this nature, the usual assumption is that the time required is proportional to the work product and inversely proportional to the number of people doing the job. Here, there is no change in the amount of work, but the number of people is reduced by a factor of 12/18 = 2/3.

So, the amount of time required is expected to increase by a factor of 1/(2/3) = 3/2.

  (6 weeks)×(3/2) = 9 weeks

It would have taken 9 weeks to sew the 540 dresses.

Answer:

C

Step-by-step explanation:

Sandra would pay in dollars for the dress is 0.76 c

What is discount ?

discount. if telling in the simple sentence discount means something which u get at lower price by its original price

According to the question,

c×(1 - 5%) × (1 - 20%)

=c×(1 - 0.05) × (1 - .20)

=c × 0.95 × 0.8

=0.76 c

Hence, Sandra would pay in dollars for the dress is 0.76 c

To learn more about discount from here

https://brainly.in/question/33230339

#SPJ2

Answer:1689

Step-by-step explanation:

Delta Math

Answer:

[tex] \huge\mathcal\colorbox{red}{\color{pink}{ᶛɲƧཡэʀ}}[/tex]

Value of x & y when

equations are

is

x = 1.5

y = 8

Answer:

10

Step-by-step explanation:

x/5+4=6

x/5=2

x=10

Answer:

16.5 cups of milk are needed.

Step-by-step explanation:

i hate you for reporting my answer.

Answer:

x=30°

Step-by-step explanation:

3x-10=2x+20

3x-2x=20+10

x = 30°

just x, no y in the photo

Answer:

Step-by-step explanation:

we have several angles that have the same vertex and so they are congruent

1) e = 35 degrees because the opp angle has this measure

2) d = 109 degrees for the reason above

3) for find f we have to notice that the sum of the three angles (if you look at the vertical line you can notice that it is a straight line, so describes two angles whose measures are 180 degrees)

f = 180 - (35 + 109)

f = 180 - 144 = 36 degrees

Answer:

14 Feet

Step-by-step explanation:

Answer:

14 is the answer

140/10=14

hope this helps

have a good day  :)

Step-by-step explanation:

Answer:

d) 27 times

Step-by-step explanation:

Let l,w, and h represent the length, width and height of the small box.

Therefore, 3l,3w, and 3h are the dimensions of the large box.

The volume of a rectangular prism, such as a box, is the product of its length, width and height

Volume of small box = l*w*h = lwh

Volume of large  box = 3l*3w*3h = 27lwh

So we can see that the volume of the large box is 27 times larger.

Answer:

-25

Step-by-step explanation:

10^2 ÷ -2^2 = -25

That's why the answer is -25.

Answer:12.7

Step-by-step explanation:

sin58=X/15

15 sin58=x

Multiply Sin58 × 15=X

X=12.7

Answer:

x=1/3

Step-by-step explanation:

Step 1: Add 2x to both sides.

x+2x=−2x+1+2x

3x=1

Step 2: Divide both sides by 3.

3x/3=1/3

x=1/3

Answer:

20.86/4=5.215

Your answer is $5.215

Brainliest would be great!

20.86/4=5.215

Your answer is $5.215

Step-by-step explanation:

Answer:

534

Step-by-step explanation:

Answer:

64

Step-by-step explanation:

A P E X

Answer:

B. ½

Step-by-step explanation:

9^x -1 = 2

9^x = 2+1

9^x = 3

9^x = √9

9^x = 9^½

x=½