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masya89 [10]
3 years ago
7

What is Mary's running speed in miles per hour?

Mathematics
2 answers:
MrRissso [65]3 years ago
6 0
Four to six miles per hour
AysviL [449]3 years ago
4 0

Answer:

4 to 6 miles an hour would be the answer

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Find the zero of the function /(x) = 5x-3.
Bad White [126]

Answer:

3/5

Step-by-step explanation:

Set it equal to 0

5x-3=0

Then solve for x

5x=3

x=3/5

Check

5(3/5) - 3

3-3

0

4 0
3 years ago
High-power experimental engines are being developed by the Stevens Motor Company for use in its new sports coupe. The engineers
Maurinko [17]

Answer:

The 99% of a confidence interval for the average maximum HP for the experimental engine.

(536.46, 603.54)

Step-by-step explanation:

<u><em>Step:-1</em></u>

Given that the mean of the Population = 540HP

Given that the size of the sample  'n' = 9

Given that the mean of the sample = 570HP

Given that the sample standard deviation = 30HP

<u><em>Step(ii):-</em></u>

<u><em>Degrees of freedom = n-1 =9-1 =8</em></u>

<u><em>t₀.₀₀₅ = 3.3554</em></u>

The 99% of a confidence interval for the average maximum HP for the experimental engine.

(x^{-} - t_{\frac{0.01}{2} ,8} \frac{S.D}{\sqrt{n} } ,x^{2}  + t_{\frac{0.01}{2},8 } \frac{S.D}{\sqrt{n} } )

(570-3.354\frac{30}{\sqrt{9} } , 570+3.354\frac{30}{\sqrt{9} } )

(570 - 33.54 , 570+33.54)

(536.46 , 603.54)

<u><em>Final answer</em></u> :-

<em>The 99% of a confidence interval for the average maximum HP for the experimental engine.</em>

<em>(536.46, 603.54)</em>

<em></em>

4 0
3 years ago
Write in mx+b form: a line with a slope of -3 that passes through the points (15,-50)
gayaneshka [121]

Answer:

y=-3x-5

Step-by-step explanation:

the picture below is how i did it

8 0
3 years ago
Which interval for the graphed function contains the local maximum?
photoshop1234 [79]

Answer:

2

Step-by-step explanation:

5 0
3 years ago
What is (−2) ( 3 <br> 4<br> 7<br> ) ?
zloy xaker [14]

Answer:

-694

No need to explain

3 0
3 years ago
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