Find the value of the unique real number ? between 0 and 2? that satisfies the given conditions.tan ? = - 
and cos ? > 0
A. 
B. 
C. 
D. 
Answer: D
Mathematics
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Evaluate the expression using exponential rules. Write the result in standard notation.(6.8 × 103) × (8.9 × 102)
A. 605,200 B. 60.52 × 106 C. 60.52 × 105 D. 6,052,000
Mathematics
Solve.The annual depreciation rate r (0 < r < 1) of a car purchased for P dollars and worth A dollars after t years can be modeled by the following formula: 
Find the depreciated value of a car 5 years after it is purchased new for $30,000 if the depreciation rate is 21%. Round your answer to the nearest dollar.
A. $23,700 B. $9231 C. $12 D. $6300
Mathematics
Solve the equation.(x2 - 2x)2 - 23(x2 - 2x) + 120 = 0
A. {5, 4} B. {- 3, - 2, 5, 4} C. {- 3, - 2, 15, 8, 5, 4} D. {15, 8}
Mathematics
Divide.
A. 15 B. 5 C. 1.5 D. 0.5
Mathematics