Let x be a number. Translate the English phrase or sentence into a mathematical expression. -6 decreased by 4 times a number
A. -6x - 4
B. -6 - 4x
C. 4x - 6
D. 4 - 6x
Answer: B
Mathematics
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Solve the given differential equation (where the function is subject to the given conditions) by using Laplace transforms.y" + 16y = 0, y
= 0, y' 
= 1
A. y = 
cos 4t
B. y = 
sin 4t
C. y = sin 4t
D. y = cos 4t
Mathematics
An expression that occurs in calculus is given. Factor completely.(2x + 1)2 + 3(2x + 1) - 4
A. 2x - 1 B. 2x(2x + 1) C. 2x - 6 D. 2x(2x + 5)
Mathematics
Evaluate the expression for the given replacement values. Write the answer in simplest form.(x - y)2; x = - 
and y = 
A. - 4 B. - 32 C. 32 D. 4
Mathematics
Find the quotient.
A. 0.00456 B. 4560 C. 456 D. 0.000456
Mathematics