Solve using the multiplication principle.
k = 6
A. 8
B. 1
C. 6
D. 7
Answer: A
Mathematics
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Use the rules for exponents to rewrite the expression and then evaluate the new expression. (72)-1
A. 
B. - 
C. -14
D. -49
Mathematics
Solve the problem.For approximately what values of x can sin x be replaced by 
with an error of magnitude no greater than 
?
A. |x| < 0.54146 B. |x| < 0.40357 C. |x| < 0.45942 D. |x| < 0.59106
Mathematics
Solve the equation for the indicated variable. Assume no denominator is 0.A = 2?a2, for a
A. a = 
B. a = 
C. a = 
D. a = 
Mathematics
The graph of a function f is given. Use the graph to answer the question.For which of the following values of x does f(x) = -40?
A. 20 B. -40 C. 30 D. 0
Mathematics