Perform the indicated operation.0.77(5x2 + 3x - 1) - (5.86x2 - 8x + 5.496)
A. -2.01x2 + 10.31x - 6.266
B. -0.86x2 + 10.31x - 6.266
C. -0.86x2 + 11x - 6.496
D. -2.01x2 - 5x - 6.266
Answer: A
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Solve the problem.The position of a weight attached to a spring is s(t) = -5 cos 12?t inches after t seconds. What is the maximum height that the weight reaches above the equilibrium position and when does it first reach the maximum height? Round values to two decimal places, if necessary.
A. The maximum height of 10 inches is first reached after 3 seconds. B. The maximum height of 10 inches is first reached after 6 seconds. C. The maximum height of 5 inches is first reached after 6 seconds. D. The maximum height of 5 inches is first reached after 0.08 seconds.
Approximate the logarithm to four decimal places using the change of base formula.log4
A. -0.5000 B. 0.3010 C. -2.0000 D. -0.9031
Add.(4a4 - 9a3) + (6a4 + 3a3)
A. 4a7 B. 10a4 - 6a3 C. 10a8 - 6a6 D. 4a14
Find the value of the expression using the given values.
?x = 9, y = 12
A. 14 B. 15 C. 11 D. 8