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3 years ago

I need the answer fast pls

Mathematics

1 answer:

Elza [17]3 years ago

6 0

There are 25 students in the class

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5231+4331=9562 3696+6939

7nadin3 [17]

Answer:

10635

Step-by-step explanation:

Honestly, I dunno. I just added it.

5 0

3 years ago

Read 2 more answers

The Insure.com website reports that the mean annual premium for automobile insurance in the United States was $1,503 in March 20

stira [4]

Answer:

a) Option A)

$H_{0}: \mu \geq 1503\\H_A: \mu < 1503$

b) Point estimate of difference = -78

Step-by-step explanation:

We are given the following in the question:

Population mean, μ = $1,503

Sample mean, $\bar{x}$ = $1,425

Sample size, n = 25

Sample standard deviation, s = $160

We have to carry a hypothesis test that the mean annual premium in Pennsylvania is lower than the national mean annual premium.

a) First, we design the null and the alternate hypothesis

$H_{0}: \mu \geq 1503\text{ dollars}\\H_A: \mu < 1503\text{ dollars}$

b) Point estimate of the difference between the mean annual premium in Pennsylvania and the national mean

Point estimate of difference =

Mean annual premium in Pennsylvania - National mean

$\text{Point estimate} = \bar{x} - \mu = 1425 - 1503 = -78$

Thus,

Point estimate of difference = -78

5 0

4 years ago

Could someone please tell me or explain how to solve these types of equations?? you don’t have to do these problems specifically

Lunna [17]

Okay so you know a straight line is equal to 180 degrees, so you set them up in an algebraic equation. (5x+2)+48=180 subtract 48 first to get 5x+2=132 Subtract the 2 this time to get 130. Now you end up with 5x=130. Here you divide 130 by 5 to get X=26. If you just need to find the degree of that angle tho you can stop after the first subtraction because the math tells you (5x+2)=132 degrees.

8 0

3 years ago

Robert is entering a contest at a local radio

lbvjy [14]

Answer:

Robert has a 59% chance of winning.

Step-by-step explanation:

I had this question on a test once, and I got it right.

Plz can I have brainliest plzzzzz

5 0

3 years ago

Find the slope of the line passing through the points D(10,8) and E(-4, 4)

ludmilkaskok [199]

Answer: 2/7

Step-by-step explanation:

Slope form: y2-y1/x2-x1

4-8/-4-10 ==> -4/-14 ==> 2/7

7 0

3 years ago