Multiply.
? 
A. 
B. 
C. 
D. 
Answer: D
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Solve the problem.A small frictionless cart, attached to the wall by a spring, is pulled 10 cm back from its rest position and released at time t = 0 to roll back and forth for 4 sec. Its position at time t is 
. What is the cart's maximum speed? When is the cart moving that fast? What is the magnitude of of the acceleration then?
A. ? ? 3.14 cm/sec; t = 0.5 sec, 1.5 sec, 2.5 sec, 3.5 sec; acceleration is 0 cm/sec2 B. 10? ? 31.42 cm/sec; t = 0 sec, 1 sec, 2 sec, 3 sec; acceleration is 0 cm/sec2 C. 10? ? 31.42 cm/sec; t = 0.5 sec, 1.5 sec, 2.5 sec, 3.5 sec; acceleration is 0 cm/sec2 D. 10? ? 31.42 cm/sec; t = 0.5 sec, 2.5 sec; acceleration is 1 cm/sec2
Julio purchased 700 shares of a certain stock for $22,750 (including commissions). He sold the shares 5 year(s) later and received $32,100 after deducting commissions. Find the effective annual rate of return on his investment over the 5-year period. Round your answer to two decimal places. ?
A. 7.13% B. 6.91% C. 6.95% D. 7.01%
Solve the problem.Suppose that $11,000 is invested at an interest rate of 5.6% per year, compounded continuously. What is the doubling time?
A. 11.4 yr B. 13.4 yr C. 2 yr D. 12.4 yr
List the terms of the expression.-2x5 + 4x3 - 3x2 + 8x
A. -2x5, 4x3, -3x2, 8x B. -2x5, -4x3, -3x2, 8x C. 2x5, 4x3, 3x2, 8x D. -2, x5, 4, x3, 3, x2, 8, x