Find the exact value of the expression if ? = 60°. Do not use a calculator.g(?) = cos ?Find [g(?)]2.
A. 
B. 
C. 
D. 
Answer: B
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Solve the system by the addition method. If there is no solution or an infinite number of solutions, so state. Use set notation to express the solution set.
A. {(-1, -2)} B. {(0, -2)} C. {(1, -3)} D. no solution; ?
Write the number in scientific notation.4100 million
A. 41 × 108 B. 4.1 × 109 C. 4.1 × 103 D. 4.1 × 1010
Solve.Sophie can work at A-1 Computers for a base pay of $470 per week plus a $45 commission for each computer system that she sells. At One Stop Computers her base pay would be $350 with a $60 commission for each computer system that she sells. How should Sophie decide which position to take?
A. At 7 systems, she makes $785 at either store. After that, she earns more at A-1 Computers. B. At 8 systems, she makes $830 at either store. After that, she earns more at One Stop Computers. C. At 8 systems, she makes $830 at either store. After that, she earns more at A-1 Computers. D. At 7 systems, she makes $785 at either store. After that, she earns more at One Stop Computers.
Multiply the expression as you would multiply polynomials.
?
?
A. 
B. ?
C. ?
D. ?