5 math questions

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Quiz 4 (7532242)

1. -Question Details StitzCA3 5.1.504.XP. [3117259]

Let Find and simplify the indicated composite function.

State the domain. (Enter your answer using interval notation.)

f(x) = 3x − 6, g(x) = |x|, h(x) = and k(x) = .x 1 x

(h f)(x)

2. -Question Details StitzCA3 5.3.010.part2. [1848185]

Consider the function below.

Create a sign diagram.

Use your calculator to help you sketch its graph.

f(x) = x3 + 5x2 − 12x − 36 3

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3. -Question Details StitzCA3 6.1.037. [1848657]

Evaluate the expression.

log 107 3

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Name (AID): Quiz 4 (7532242) Submissions Allowed: 1 Category: Quiz Code: Locked: No Author: Szekerczes, Julie ( [email protected] ) Last Saved: Jul 26, 2015 10:09 PM EDT Permission: Protected Randomization: Person Which graded: Last

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4. -Question Details StitzCA3 5.2.016. [1847388]

Find the inverse. Check your answer algebraically and graphically.

f −1(x) =

f(x) = , x ≠ 49x x − 4

5. -Question Details StitzCA3 6.5.028.partb. [1847590]

The half-life of the radioactive isotope Carbon-14 is about 5730 years.

What percentage of the original amount of Carbon-14 is left after 30,000 years? (Round to the nearest tenth.) %