Calculate. Write the answer as a mixed number as needed.16
- 2 ? 1
A. 14
B. 13
C. 14
D. 15
Answer: B
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Perform the indicated operations. Write the answer using only positive exponents. Assume all variables represent positive real numbers.
? 
A. 
B. x22/7
C. x11/5
D. 
Solve the problem.If a rocket is propelled upward from ground level, its height in meters after t seconds is given by 
. During what interval of time will the rocket be higher than 235.2 m?
A. 0 < t < 4 B. 6 < t < 8 C. 8 < t < 10 D. 4 < t < 6
For the given functions f and g, find the requested function and state its domain. Write the domain in interval notation.f(x) = 7x - 8; g(x) = 2x - 7;
Find f - g.
A. (f - g)(x) = 5x - 1; (-?, ?) B. (f - g)(x) = 5x - 15; (-?, 3) ? (3, ?) C. (f - g)(x) = -5x + 1; (-?, ?) D. (f - g)(x) = 9x - 15; (-?, 1) ? (1, ?)
Evaluate the function.f(x) = 2x2 - 2x - 7; Find f(-2).
A. 19 B. 5 C. -3 D. 1