Solve the equation for the unknown.x2 = 121
A. x = 
B. x = 11
C. x = ± 
D. x = ±11
Answer: D
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Establish the identity.
= 
What will be an ideal response?
Use the information given about the angle ?, 0 ? ? ? 2?, to find the exact value of the indicated trigonometric function.sin ? = - 
, 
< ? < 2?Find cos (2?).
A. - 
B. 
C. 
D. - 
Jacob Sawyer will deposit $3,000 into a special account each year beginning December 31, 2016, with the last deposit being made on December 31, 2019. Jacob wants to know how much will be in his account on December 31, 2019, immediately after the final deposit, if the account earns 10% compounded annually. To solve the problem, Jacob must find the future value of
A. a single sum. B. a deferred annuity. C. an ordinary annuity. D. an annuity due.
Evaluate or simplify the following the expression.23
A. 5 B. 8 C. 6 D. 4