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3 years ago

If f(x)=-x-2 and g(x)=x^2, what is (g°f)(-6)

Mathematics

1 answer:

Leto [7]3 years ago

6 0

$(g \circ f)(x)=(-x-2)^2=x^2+4x+4\\\\
(g\circ f)(-6)=(-6)^2+4\cdot(-6)+4=36-24+4=16$

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Which of the following values in the set below will make the equation 2x + 1 = 3 true? (Only input the number.)

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In words the answer is between t=0 and t=2.

In interval notation the answer is (0,2)

In inequality notation the answer is 0<t<2

Big note: You should make sure the function I use what you meant.

Step-by-step explanation:

I hope the function is h(t)=-16t^2+32t because that is how I'm going to interpret it.

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Interval notation (0,2)

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3. Suppose you are testing H0 : µ = 20 vs H1 : µ > 20. The sample is large (n = 71) and the variance, σ 2 , is known. (a) Fin

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We reject the null hypothesis.

Step-by-step explanation:

We are given the following information in the question:

Sample size, n = 71

Population variance is known.

Level of significance, α = 0.08

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The null and alternate hypothesis are:

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We use one-tailed z test to perform this hypothesis.

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