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3 years ago

If f(x)=2x^2-1 and g(x)= -5x , write a function rule representing the result of each function operation.

1 answer:

7 0

A.) (fg)(x) = (2x^2 - 1)(-5x) = -10x^3 + 5x

b.) (g of f)(x) = g(f(x)) = -5(2x^2 - 1) = -10x^2 + 5

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marishachu [46]

Answer:

Step-by-step explanation:

6+6=12

12+12=24

24+24=48

and

48+48=96

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2 years ago

Read 2 more answers

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attashe74 [19]

W = 6
b = 4
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2 years ago

If (x + 7) is a factor of f(x), what is the value of f(-7)?

rewona [7]

Answer:

The answer is 0.

Step-by-step explanation:

Simply plug in -7 for x as they want to see what the value of the function is when x=-7.

You can then just add -7 and 7.

7 + -7 = 0

So the answer is 0

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2 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:

Step:-1

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

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.

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

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

(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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2 years ago

What's the answer for x/2-5=3

kifflom [539]

X=16

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3 years ago