A function f(x), a point x0, the limit of f(x) as x approaches x0, and a positive number ? is given. Find a number 
such that for all x, 0 < 
< ? ? 
< ?.f(x) = mx, m > 0, L = 6m, x0 = 6, and ? = 0.05
A. ? = 6 + 
B. ? = 6 - m
C. ? = 
D. ? = 0.05
Answer: C
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Use a calculator to find the approximate value of the expression. Round the answer to two decimal places.cos 7°
A. 0.99 B. -0.75 C. 0.75 D. -0.99
Complete the square to write the equation in the form 
- 
= 1 or 
- 
= 1. 4x2 + 16x - 16y2 + 32y - 64 = 0
A. 
- 
= 1
B. 
- 
= 1
C. 
- 
= 1
D. 
- 
= 1
Solve.A rotating beacon is located a distance d from a long wall. The distance d is given by 
, where t is the time measured in seconds since the beacon started rotating. Solve the equation for t.
A. t = 
arctan 
B. t = 2? arctan 
C. t = 2? tan 
D. t = 
tan 
Use the rational zeros theorem to determine the potential rational zeros of the polynomial function. Do not find the zeros.f(x) = 7x5 - 5x2 + 3x - 1
A. ± 1, ± 
B. ± 1, ± 7, ± 
C. ± 1, ± 7
D. ± 7, ± 