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3 years ago

I need help with these two

Mathematics

1 answer:

djyliett [7]3 years ago

4 0

Answer:

Part 1) Slope-intercept form

Part 2) The slope of 2.20 tells me the rate per mile and the y-intercept of 2.50 tells me the flat fee

Step-by-step explanation:

Part 1) we know that

The linear equation in slope intercept form is equal to

$y=mx+b$

where

m is the slope or unit rate

b is the y-intercept or initial value

In this problem we have

$y=2.50+2.20x$

This is a linear equation in slope intercept form

where

$m=2.20$

$b=2.50$

Part 2) we have that

x -----> represent the number of miles

y ----> represent the total charge in dollars

The slope is

$m=\$2.20\ per\ mile$ ---> unit rate

The y-intercept is

$b=\$2.50$ ----> initial value or flat fee

therefore

The slope of 2.20 tells me the rate per mile and the y-intercept of 2.50 tells me the flat fee

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a circle is divided into 18 equal parts how many degrees is the angle for each part? how many degrees is the angle for 5 parts?

Ket [755]

There are 360 degrees in a circle, and we have 18 pieces, so we need to see how many times 18 goes into 360. We can find this out by dividing.

360/18=20

You can check this by multiplying 20 and 18 (it equals 360)!

So, each fraction of the circle will be 20 degrees.

If you take 5 of these 20 degree pieces, you'll need to multiply them by 20 to see how many degrees they'd be.

You need to multiply by 20 because each piece is 20 degrees, and we need to find how many degrees 5 pieces is. It's the same as doing
20+20+20+20+20! :)

20*5=100. 5 parts will be 100 degrees.

Hope I helped! :)

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3 years ago

Find the volume of the prism.

Gemiola [76]

Answer:

Step-by-step explanation:

The volume of the triangular prism, this is an isosceles triangular prism is

V=1/2 * a*b*h

V=1/2 x10x8x14=560 cm^3

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2 years ago

In the system if linear equations below a and b are constants.The solution to the systems is 5,1

dalvyx [7]

Answer:

Step-by-step explanation:

Actually Welcome to the Concept of the linear equations..

Here given value of x= 5 and y =1 , so we get as,

5a + b = 38 and 5b - a = 8

so, now we multiply equation no. 2 by 5 all over.

==> 25b - 5a = 40....(1)

hence adding new equation and equation no. 1

26b = 78

b = 78/26

hence b = 3 , and a = 7

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2 years ago

PLEASE HELP I WILL MARK YOU BRAINLIEST PLEASE AND SHOW YOUR WORK (1) Jaime has 103 toys. He can fit a maximum of 9 toys into eac

Artist 52 [7]

Answer:

(1) 12 boxes (2) 1173 points

Step-by-step explanation:

(1) Jamie needs to fit all if his toys in the boxes, so you would need to do 103 times 9, making it 11.4. So, you'd need twelve boxes to fit all of he toys into boxes.

(2) The contestant earned 69 points, and each of those points are worth 17 points, meaning you have to do 17 times 69, which is 1173 .

3 0

3 years ago

A sample survey interviews SRSs of 500 female college students and 550 male college students. Researchers want to determine whet

stira [4]

Answer:

Option (d) and (e)

Step-by-step explanation:

We are given that a sample survey interviews SRS of 500 female college students and 550 male college students. And Researchers want to determine whether there is a difference in the proportion of male and female college students who worked for pay last summer.

In all, 410 of the females and 484 of the males say they worked for pay last summer.

From this, Null Hypothesis, $H_0$ : $p_1 = p_2$ {means proportion of male and female college students who worked for pay last summer are same}

Alternate Hypothesis, $H_1$ : $p_1\neq p_2$ {means there is a difference in the proportion of male and female college students who worked for pay last summer}

Now, since we know that results were statistically significant at the 1% level.

So, if p-value is less than the significance level ⇒ we will reject $H_0$

if p-value is more than the significance level ⇒ we will not reject $H_0$

From the options given it is sure that P-value is less than 1%,i.e.;

<em>P-value is less than the significance level, so we will reject null hypothesis and conclude that there is convincing evidence that the proportion of all male college students in the study who worked for pay last summer is different from the proportion of all female college students in the study who worked for pay last summer. </em>

Also, option (d) and (e) are same in my opinion.

4 0

3 years ago