Write the phrase as a variable expression. Use x to represent "a number."Negative sixteen decreased by 6 times a number
A. -16 + 6x
B. 16 + 6x
C. -16 - 6x
D. 16 - 6x
Answer: C
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Solve the differential equation.y ' + y tan x = cos x, -?/2 < x < ?/2
A. y = x cos x + C cos x, -?/2 < x < ?/2 B. y = x cos x + C sin x, -?/2 < x < ?/2 C. y = x sin x + C sin x, -?/2 < x < ?/2 D. y = x sin x + C cos x, -?/2 < x < ?/2
Find a rectangular equation for the plane curve defined by the parametric equations.x = 5 cos t, y = -2 sin t; 0 ? t ? 2?
A. 4x2 - 25y2 = 100; x ? 5
B. 4x2 + 25y2 = 1; - 
? x ? 
C. 4x2 - 25y2 = 1; x ? 
D. 4x2 + 25y2 = 100; -5 ? x ? 5
Solve.3(4x - 1) = 12
A. 
B. 
C. 
D. 
Solve the problem.This chart shows the number of meals served in a restaurant during each of the past 4 months. Assume that the information in the chart defines a function with the name g. Find g(March). 
A. 4000 meals B. 4041 meals C. 4057 meals D. 4062 meals