Find the indicated root, or state that the expression is not a real number.
A. 
B. 3
C. 9
D. -3
Answer: B
Mathematics
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Use a definite integral to find an expression that represents the area of the region between the given curve and the x-axis on the interval [0, b].y = 
+ 4
A. - 
- 4b
B. 
+ 4b
C. 
+ 4
D. - 
- 4
Mathematics
Use a calculator to find the approximate value of the expression. Round the answer to two decimal places.cot 0.2658
A. 1.04 B. 3.67 C. 0.27 D. 0.96
Mathematics
Solve the problem.Sun Woo Kim invested $2500 at 4% compounded semiannually. How much will be in the account after 8 years? Round to the nearest cent.
A. $3431.96 B. $4682.45 C. $3421.42 D. $2929.15
Mathematics
Solve the equation. If necessary, round to thousandths.5(2x - 3) = 19
A. 3.400 B. 2.415 C. -0.585 D. 2.168
Mathematics