Solve the equation for y.-5x + 20y = 0
A. y = 4x
B. y = 4x + 5
C. y = -4x
D. y = 
Answer: D
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Find an upper bound for the magnitude |E| of the error in the linear approximation L to f at the given point over the given region.
at 
R: |x| ? 0.1, |y| ? 0.1
A. |E| ? 5.3278 B. |E| ? 4.6619 C. |E| ? 9.3237 D. |E| ? 2.6639
Solve the problem.The two solutions of the equation x2 = x + 1 are
A. 1 and ?. B. ? and -1/?. C. ? and -?. D. ? and ?2. E. none of these
Express the function as a sinusoid of the form y = a sin (bx + c).y = 2 sin (3x) - 5 cos (3x)
A. y = 
sin 
B. y = 
sin 
C. y = 
sin 
D. y = 
sin 
Solve the problem.A certain car has a weight limit for all passengers and cargo of 1147 pounds. The four passengers in the car weigh an average of 170 pounds. Use an inequality to find the maximum weight of the cargo that the car can handle.
A. at most 467 lb
B. at most 
lb
C. at most 977 lb
D. at most 
lb