Write the matrix equation as a linear system of equations.
= 
A. 
B. 
C. 
D. 
Answer: D
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At one high school, the mean time for running the 100-yard dash is 
with a standard deviation of 0.9 seconds. The times are very closely approximated by a normal curve. Find the percent of times that are:Less than 17 seconds
A. 2.5% B. 84% C. 97.7% D. 98%
Find the derivative.y = 3 cos3(3x + 3)
A. -3 sin3(3x + 3) B. -81 sin2(3x + 3) C. 9 cos2(3x + 3) sin (3x + 3) D. -27 cos2(3x + 3) sin (3x + 3)
Find the exact value under the given conditions.Given cos u = - 
, with u in quadrant II, and sin v = 
, with v in quadrant II. Find tan(u + v).
A. - 
B. 
C. 
D. - 
Use the rational zero test to find all the rational zeros of f(x).f(x) = 5x4 + 4x3 - 81x2 - 64x + 16
A. Zeros: -4, 5, -1, 1/5 B. Zeros: -4, 4, -1, 1/5 C. Zeros: 4, -4, 1, -1 D. Zeros: 4, -4, 1, -1/5