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Anvisha [2.4K]
3 years ago
9

Calculate the average speed of the car in m/s

Mathematics
1 answer:
Alina [70]3 years ago
3 0

Answer:

14.4 m/s

Step-by-step explanation:

The speed of the car can be found by dividing the distance by the time. The distance is 0.8m 9 times or 0.8(9)=7.2 meters and the time is 0.5 seconds

s=\frac{d}{t} \\s=\frac{7.2}{0.5} \\s=14.4

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Please help me do this
artcher [175]

Answer:

125

Step-by-step explanation:

add 21 and 34. with that you get 55. then subtract 180 from 55 then get 125

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2 years ago
By what percent will a fraction increase if its numerator is decreased by 30% and its denominator is decreased by 50%?
Alex Ar [27]
(X + .3X) / (X - 0.5X) = 1.3X/0.5X
1.3/0.5 = 2.6
2.6 x 100 = 260 %
6 0
3 years ago
Suppose you carry out a significance test of h0: μ = 8 versus ha: μ > 8 based on sample size n = 25 and obtain t = 2. 15. Fin
OLEGan [10]

Using a t-distribution calculator and finding the p-value, the correct option regarding the conclusion is given by:

a) the p-value is 0.02. We reject h0 at the 5% significance level because the p-value 0.02 is less than 0.05.

<h3>What is the relation between the p-value and the conclusion?</h3>

It also involves the significance level, as follows.

  • If the p-value is less than the significance level, we reject the null hypothesis h_0.
  • If it is more, we do not reject.

In this problem, a t-distribution calculator for a right-tailed  with <em>t = 2.15 and 25 - 1 = 24 df</em> is used to find a p-value of 0.02.

It is less than 0.05, hence option a is correct.

More can be learned about p-values at brainly.com/question/26454209

5 0
2 years ago
BRAINLY CUP!!!! First to answer gets Brainliest and 50 points!
ArbitrLikvidat [17]
-np-4≤2(c-3)
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7 0
3 years ago
Read 2 more answers
Carolyn Mills does maintenance work at a golf course. She worked these hours last season: April, 150; in each of the next four m
GalinKa [24]

Answer:

$11,025

Step-by-step explanation:

April: 150hrs

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September: 100 hrs

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150+800+100 = $1,050

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*Gross pay is the amount of money made before tax

8 0
3 years ago
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