Add or subtract as indicated. Simplify if necessary.
- 2
A. - 
B. 
C. - 
D. - 
Answer: D
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For a satellite orbiting Earth, the time required to complete a single orbit is known as the period. The period P, in hours, is related to the distance D, in miles, from the center of Earth by the formula
.
Does an increase in period have a greater effect on distance for a satellite with a longer period or for a satellite with a shorter period? A graph of D versus P can help you answer this question.
What will be an ideal response?
Add. -1 + 4
A. -3 B. -5 C. 3 D. 5
Use properties of logarithms to expand the logarithmic expression as much as possible. Where possible, evaluate logarithmic expressions without using a calculator.log 
A. -10x B. log x - 1 C. log x + 1 D. 10x
Determine whether the given quadratic function has a minimum value or maximum value. Then find the minimum or maximum value and determine where it occurs.f(x) = -x2 + 2x - 6
A. Minimum is - 5 at x = 1. B. Maximum is 1 at x = - 5. C. Minimum is 1 at x = - 5. D. Maximum is - 5 at x = 1.