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3 years ago

Given that G(x) = 5/2x - 7/2 what is x if G(x) = 39

Mathematics

2 answers:

Evgen [1.6K]3 years ago

4 0

If G(x) = 39, then

5/2x - 7/2 = 39

Multiplying both sides by 2, we get

5x - 7 = 78

5x = 78 + 7

5x = 85

x = 17

I hope this answer helps!

Solnce55 [7]3 years ago

4 0

Answer:

x=17

Step-by-step explanation:

Given that G(x)=5/2x-7/2

Given that G(x)=39

Which is 39=5/2x-7/2

Multiply through by 2

39×2=(5/2x)2 - (7/2)2

78=5x -7

5x=78+7=85.

x=85/5

x=17.

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Answer:

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(536.46, 603.54)

Step-by-step explanation:

Step:-1

Given that the mean of the Population = 540HP

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Given that the mean of the sample = 570HP

Given that the sample standard deviation = 30HP

Step(ii):-

Degrees of freedom = n-1 =9-1 =8

t₀.₀₀₅ = 3.3554

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

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

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(570 - 33.54 , 570+33.54)

(536.46 , 603.54)

Final answer :-

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

(536.46, 603.54)

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3 years ago

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please mark as brainliest or give good rating if this helped you. I hope it did!

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