Solve.
- 
= -2
A. - 
B. -9
C. 27
D. 
Answer: B
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Perform the indicated operation and express with the proper accuracy and precision. The first number given is approximate and the second number is exact. (Use calculator if needed).0.3073 + 19.7
A. 20.0073 B. 20 C. 20.0 D. 20.01
250 students in a math class take the final exam. The scores on the exam have an approximately normal distribution with mean ? = 75 and standard deviation ? = 10.Approximately how many students had test scores with standardized values between -2 and 0.675?
A. 125 B. 204 C. 181 D. 147 E. 85
Give the equation of the horizontal asymptote, if any, of the function.f(x) = 
A. y = 0 B. y = -3 C. y = -12, y = 4 D. none
Convert the radical expression to its rational exponent form and then simplify. Assume that all variables represent positive numbers.
A. x7/2y6/7 B. x2/7y6/7 C. x2/7y7/6 D. x7/2y7/6