Simplify using the laws of exponents.(5x4)(2x5)
A. 7x9
B. 10x20
C. 7x20
D. 10x9
Answer: D
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Use the definition to find an expression for the instantaneous acceleration of an object moving with rectilinear motion according to the given function. The instantaneous acceleration is defined as the instantaneous rate of change of the velocity with respect to time. s = t2 + 
[s is the displacement. Find v, then find a]
A. 2 + 
B. 1 + 
C. 2 - 
D. 2t - 
Find the missing dimension of the figure shown. Round to the nearest tenth unless otherwise directed in parentheses.The hexagon is regular.
A. 71 ft B. 123 ft C. 61 ft D. 112 ft
Solve the problem.A standard deck of cards is made up of four suits with 13 cards in each suit (total of 52 cards). If we randomly sample four cards from a standard poker deck, find the probability that all four cards selected are diamonds.
A. 
B. 
C. 
D. 
Solve.How long will it take for the population of a certain country to double if its annual growth rate is 6.4%? Round to the nearest year. Use the exponential growth model P(t) = P0ekt.
A. 5 yr B. 1 yr C. 11 yr D. 31 yr