Use absolute value notation to define the interval (or pair of intervals) on the real number line.
?
All real numbers within 6 units of 11
?
A. ?|x - 11|> 6
B. ?|x + 11|> 6
C. ?|x - 11| ? 6
D. |x - 11| ? 6
E. |x - 11|< 6
Answer: E
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Let U = {q, r, s, t, u, v, w, x, y, z} A = {q, s, u, w, y} B = {q, s, y, z} C = {v, w, x, y, z}. List the elements in the set.A ? B
A. {r, t, u, v, w, x, z} B. {v, w, x, y, z} C. {q, s, y} D. {q, s, u, w, y, z}
Solve the problem.John has received scores of 85, 88, 87, and 90 on her algebra tests. What is the minimum score he must receive on the fifth test to have an overall test score average of at least 87? (Hint: The average of a list of numbers is their sum divided by the number of numbers in the list.)
A. 83 B. 86 C. 85 D. 84
Use properties of logarithms to expand the logarithmic expression as much as possible. Where possible, evaluate logarithmic expressions without using a calculator.log5
A. 
log511x
B. log5
+ log5
C. log511 + 
log5x
D. 
log511 + 
log5x
Use synthetic division to determine whether the number k is an upper or lower bound (as specified) for the real zeros of the function f.k = 2; f
= 2x3 + 3x2 - 4x + 4; Lower bound?
A. Yes B. No