Find all the real zeros of 
.
A. ?x = 3, 
B. ?x = 2, 1, -6
C. ?x = ± 1, 3
D. ?x = 3
E. ?x = 
, 
Answer: D
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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. 
Solve the problem.The graph shows the relationship between the area A of a rectangle and the length L, if the width is fixed. Find a formula for that function.
A. A = -2L B. A = 17L C. A = 170L D. A = 10L
Solve the problem.Margaret takes out a loan on a fixer-upper house. She then spends $3354 in repairs and improvements. She sells the house for $82,170. If the pay-off for the loan that she took out to buy the house is $71,703, what is her net? Is it profit or loss?
A. $7113, profit B. -$13,821, loss C. $157,227, profit D. $13,821, profit
Solve the problem.A bridge is built in the shape of a semielliptical arch. It has a span of 120 feet. The height of the arch 27 feet from the center is to be 7 feet. Find the height of the arch at its center.
A. 15.56 ft B. 7.18 ft C. 27.19 ft D. 7.84 ft