Find the LCM of the expressions.20x5, 4x3
A. 20x5
B. 20x3
C. 4x3
D. 4x5
Answer: A
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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 what percentage of the test scores had standardized values between -3 and 3?
A. 95% B. 68% C. 99.7% D. 50% E. none of these
Use synthetic division to find the function value.f(x) = 2x4 - 9x3 + 4x2 - 5x - 7; find f(2).
A. -41 B. -114 C. -65 D. 105
Solve the absolute value equation or indicate that the equation has no solution.
= 12
A. 
B. 
C. {- 1, 23}
D. {-23, - 1}
Supply the missing numbers. Round any decimal to the nearest thousandth and percent to the nearest tenth of a percent if necessary.fractiondecimalpercent?90%
A. 
; 0.9
B. 
; 0.9
C. 
; 9
D. 
; 9