Factor; then use fundamental identities to simplify the expression below and determine which of the following is not equivalent.
?
A. ?
B. ?
C. ?
D. ?
E. ?
Answer: A
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Solve the problem.A spring with a spring constant k of 300 newtons per meter is loaded with a 12-kilogram mass and allowed to reach equilibrium. It is then stretched an additional 0.4 meter and released. Find the equation of motion. Neglect friction.
A. y = 0.4 sin 25t B. y = 0.4 cos 5t C. y = 0.4 sin 5t D. y = 0.4 cos 15.653t
Find the product.(11x + 8)(11x - 8)
A. 121x2 - 176x - 64 B. x2 - 64 C. 121x2 + 176x - 64 D. 121x2 - 64
Solve.An equation that can be used to predict the median age N (in years) of the population of the United States is N = 33.62 + 1.0249 ln x, where x is the number of years. Use the equation to find the median age of the U.S. population in 12 years. If necessary, round to the nearest hundredth.
A. 33.62 B. 36.105 C. 36.167 D. 34.726
Use the quadratic formula to find the exact solutions.x2 - 10x + 41 = 0
A. 9, 1 B. -5 ± 4i C. 10 ± 8i D. 5 ± 4i