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3 years ago

15

F s(x) = 2 – x2 and t(x) = 3x, which value is equivalent to (s*t)(-7)

1 answer:

Natalija [7]3 years ago

5 0

S(x) = 2 - x²

t(x) = 3x

s(t(x)) = st(x)

s(t(x)) :

s(3x)

So in s(x) = 2 - x², to solve for s(3x) we replace x with 3x

s(x) = 2 - x²

s(3x) = 2 - (3x)²

= 2 - 9x²

st(x) = 2 - 9x²

st(-7) = 2 - 9*(-7)(-7)

= 2 - 9*49 = 2 - 441 = -439

st(-7) = -439

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Answer:

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Step-by-step explanation:

Starting with:

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Begin by finding a common denominator. A number that contains all of the denominators as a factor would be 28. Change each fraction to contain a denominator of 28:

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3 years ago

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nevsk [136]

Answer:

( 1 , -2 , 4 , -8 , 16 , ... )

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Step-by-step explanation:

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In sequence,

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$\frac{-2}{1}\neq \frac{3}{-2}\neq \frac{-4}{3}\neq \frac{5}{-4}...$

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3 years ago

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MariettaO [177]

Answer:

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Step-by-step explanation:

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