Find the exact function value.cos-1
A. 
B. 
C. 
D. 
Answer: A
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Express the number in words.4,700,345
A. four million, seven hundred thousand, three thousand, forty-five B. four million, seven hundred thousand, three hundred forty-five C. four million, seventy thousand, three hundred forty-five D. four million, seven thousand, three hundred forty-five
Factor the polynomial completely.729p3 - 1
A. (9p + 1)(81p2 - 9p + 1) B. (9p - 1)(81p2 + 9p + 1) C. (729p - 1)(p2 + 9p + 1) D. (9p - 1)(81p2 + 1)
Evaluate the absolute value expression.
A. -111 B. -15 C. 15 D. 111
Solve.Melissa invested a sum of money at 3% annual simple interest. She invested three times that sum at 5% annual simple interest. If her total yearly interest from both investments was $5400, how much was invested at 3%?
A. $202,500 B. $67,500 C. $30,000 D. $22,500