Factor completely. State that the polynomial is prime if it cannot be factored.3y3 - 9y2 - 30y
A. 3y(y + 2)(y - 5)
B. (3y2 + 6y)(y - 5)
C. 3y(y - 2)(y + 5)
D. (y - 2)(3y2 + 15)
Answer: A
Mathematics
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Find dy/dt.y = cos4(?t - 11)
A. 4 cos3(?t - 11) B. -4? sin3(?t - 11) C. -4 cos3(?t - 11) sin(?t - 11) D. -4? cos3(?t - 11) sin(?t - 11)
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Simplify. Assume all variables and radicands represent nonnegative real numbers.
A. 3x
B. 3xy
C. 3xy2 
D. 3x2 
Mathematics
Convert the radian measure to degrees. Round your answer to two decimal places. 2
A. 229.18° B. 114.89° C. 228.88° D. 114.59°
Mathematics
Solve the problem.How much pure acid should be mixed with 6 gallons of a 50% acid solution in order to get an 80% acid solution?
A. 15 gal B. 3 gal C. 24 gal D. 9 gal
Mathematics