Simplify. Express the final answer in exponential form.(x7)3
A. 3x21
B. x21
C. x10
D. 3x7
Answer: B
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Continue the pattern for five more items in the list.180, 169, 158, 147, ...
A. 139, 131, 123, 115, 107 B. 136, 125, 114, 103, 92 C. 136, 132, 128, 124, 120 D. 305, 452, 757, 1209, 2076
Write as a proportion.If 52 pounds of potatoes is enough to feed 130 children, then 60 pounds should be the right amount for 150 children.
A. 
= 
B. 
= 
C. 
= 
D. 
= 
Solve the problem.A weight attached to a spring is pulled down 3 inches below the equilibrium position. Assuming that the period of the system is 
second, determine a trigonometric model that gives the position of the weight at time t seconds.
A. s(t) = 3cos 
t
B. s(t) = 3cos 10?t
C. s(t) = -3cos 10?t
D. s(t) = -3cos 5?t
Simplify the expression. Assume that variables represent nonzero numbers.
2
A. 
B. 
C. 
D. 