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3 years ago

Why is the speed not the same on each surface

Mathematics

1 answer:

gulaghasi [49]3 years ago

5 0

Answer

Speed depends on the amount of force you put into it... it the force is the same on the each surface then it will depend on the roughness of the surface as in friction

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Wright the inequality that represents the sentence.

Serga [27]

X-5 is greater than or equal to -28
X*4 is less than or equal to -10
(x/3) + 6 is greater than 14

7 0

3 years ago

Earl is spending money at a average rate of $675 per week after 11 weeks his savings is down to $13,500. Write an explicit equat

Gala2k [10]

Answer:

20925

Step-by-step explanation:

multiply 675 by 11 to get 7425. Add 7425 to 13500 to get 20925. To check minus 20925 by 7425. I got 13500. So this answer is reasonable.

6 0

2 years ago

Hello people I can use some help

serious [3.7K]

Answer:

The inverse operation is division

5 0

3 years ago

Find the midpoint with the endpoints (1,2) (7,2)

den301095 [7]

Answer:

(4,2)

Step-by-step explanation:

The x coordinate of the midpoint is the sum of the x coordinates divided by 2

( 1+7)/2 = 8/2 = 4

The y coordinate of the midpoint is the sum of the y coordinates divided by 2

( 2+2)/2 = 4/2 = 2

The midpoint is (4,2)

3 0

3 years ago

Read 2 more answers

At a certain university, the average attendance at basketball games has been 3125. Due to the dismal showing of the team this ye

Neporo4naja [7]

Answer:

The test statistic needed to evaluate the claim is t = -1.08.

Step-by-step explanation:

The test statistic is:

$t = \frac{X - \mu}{\frac{s}{\sqrt{n}}}$

In which X is the sample mean, $\mu$ is the expected value of the mean, s is the standard deviation of the sample and n is the size of the sample.

At a certain university, the average attendance at basketball games has been 3125. The athletic director claims that the attendance is the same as last year.

This means that $\mu = 3125$

Due to the dismal showing of the team this year, the attendance for the first 9 games has averaged only 2915 with a standard deviation of 585.

This means that $n = 9, X = 2915, s = 585$

What is the test statistic needed to evaluate the claim?

$t = \frac{X - \mu}{\frac{s}{\sqrt{n}}}$

$t = \frac{2915 - 3125}{\frac{585}{\sqrt{9}}}$

$t = -1.08$

The test statistic needed to evaluate the claim is t = -1.08.

6 0

2 years ago