Evaluate the expression when x = 5, y = -2, and t = 8.|x + t - 4y|
A. 29
B. 1
C. 21
D. 5
Answer: C
Mathematics
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Sketch the level curve z = k for the indicated values of k.z = x + y2, k = -4, -1, 0, 1, 4
A. 
B. 
C. 
D. 
Mathematics
Consider a function 
. When f is not changing, what can be said about 
?
?
A. is positive.
B. is negative.
C. is zero.
D. is increasing.
Mathematics
Evaluate the second derivative of the function for the given value of x.f(x) = (x2 - 3x + 2)(2x - 6), x = 0
A. -24 B. 0 C. 22 D. -12
Mathematics
Use a graphing calculator to determine which expression completes the identity.The expression 
? csc x is to be the left hand side of an equation that is an identity. Which one of the following four expressions can be used as the right hand side of the equation to complete the identity?
A. csc x - tan x B. cos x - 1 C. sec x + cos x D. tan2x
Mathematics