Sem2 Pre-Calculus Final Review #3 (Chapter 6 & 11)

Given f(x) and g(x), find the composition (g∘ f)(x).

• x

• x + 6

• x - 3/2

• 2x + 3

Tags

CCSS.HSF-BF.A.1C

An initial investment of $480 earns interest for 7 years in an account that earns 11% interest compounded quarterly. Find the amount of money in the account at the end of the 7 year period.

• $996.56

• $998.51

• $1025,96

• $545.96

Tags

CCSS.HSF-LE.A.1C

If $4,500 is invested in an account that pays interest compounded continuously, how long will it take to grow to $13,500 at 6%?

• 18.3 years

• 6.6 years

• 11.0 years

• 14.8 years

Tags

CCSS.HSF.LE.A.4

Solve the equation.

log (x - 3) + log (x) = 1

• x = 5

• x = -5, 2

• x = -5

• x = -2, 5

Rewrite the expression as a single logarithm.

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Expand the logarithm.

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Use your calculator to approximate the logarithm to four decimal places.

log₆ 86.38

• 0.4019

• 1.9364

• 14.3967

• 2.4885

Write the standard form of the equation of the circle with a center at (-7, -8) and a radius of 9.

• (x + 7)² + (y + 8)² = 81

• (x + 7)² + (y + 8)² = 9

• (x - 7)² + (y - 8)² = 81

• (x - 7)² + (y - 8)² = 9

Tags

CCSS.HSG.GPE.A.1

Find the inverse of the one-to-one function.

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Tags

CCSS.HSF-BF.B.4A

Which function shows exponential growth?

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Tags

CCSS.HSF-LE.A.1A