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andrew-mc [135]
3 years ago
13

A remote control car races straight down the street at 26 miles per hour. Two

Mathematics
1 answer:
Dmitry_Shevchenko [17]3 years ago
8 0

It will take 2 hours for the car going 52 mph to reach the car going 26 mph.

The scale the speed of the car measured is:

D. Tens

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A safety officer wants to prove that μ = the average speed of cars driven by a school is less than 25 mph. Suppose that a random
Akimi4 [234]

Answer:

t=\frac{24-25}{\frac{2.2}{\sqrt{14}}}=-1.70    

The degrees of freedom are given by:

df=n-1=14-1=13  

The p value for this case would be given by:

p_v =P(t_{(13)}  

Step-by-step explanation:

Information given

\bar X=24 represent the mean height for the sample  

s=2.2 represent the sample standard deviation

n=14 sample size  

\mu_o =25 represent the value that we want to test

t would represent the statistic

p_v represent the p value for the test

Hypothesis to verify

We want to cehck if the true mean is lees than 25 mph, the system of hypothesis would be:  

Null hypothesis:\mu \geq 25  

Alternative hypothesis:\mu < 25  

The statistic would be given by:

t=\frac{\bar X-\mu_o}{\frac{s}{\sqrt{n}}}  (1)  

Replacing the info given we got:

t=\frac{24-25}{\frac{2.2}{\sqrt{14}}}=-1.70    

The degrees of freedom are given by:

df=n-1=14-1=13  

The p value for this case would be given by:

p_v =P(t_{(13)}  

8 0
3 years ago
What is 6÷319 step by step​
Kipish [7]

6/319 = 0.0188087774

I used a calculator

or, just use long division

Have a great day!

Stay safe and healthy!

Happy holiday seasons!

May I please have brainliest?

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3 years ago
What is 73% of 15 cuz i dont know what the answer is
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Answer:

10.95 (if you need to round 11)

Step-by-step explanation:

:p

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C= Clarence, J= Juan, and D= Darlene
C= 3J-5
D= C/2+2
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PLEASE HELP ME I'LL FAIL MATH 20 POINTS
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Answers:
1. 5(x-6)
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