Let f(x) = |5x + 8| - 4. Find f(-2).
a. 6
b. -2
c. -3
d. 13
b. -2
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Find the exact value of the trigonometric expression without the use of a calculator.If cos ? = - 
, 
< ? < ? and sin ? = - 
, ? < ? < 
, find the exact value of tan (? + ?).
A. 
B. 
C. 
D. 
Find the indicated sum.5 + 15 + 45 + 135 + 405 + ... + 5 ? 312
A. 3,985,807 B. 3,985,842 C. 3,985,805 D. 3,985,785
Combine like terms whenever possible. Write the result with descending powers.-6y5 - 9y4
A. -15y5 B. -15y9 C. -15y4 D. Cannot be simplified
Solve the problem.The amplitude of an alternating voltage V = V(t) is sometimes indicated by giving the rms (root mean square) voltage, which is the square root of the average value of V2. Find the rms voltage if 
over the period 
to t = 1/60 s.
A. 153.3 V B. 0.1 V C. 23,500.9 V D. 265.6 V