Tell whether the relation is a function.
A. Function
B. Not a function
Answer: B
Mathematics
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Find an upper bound for the magnitude |E| of the error in the approximation f(x, y) ? L(x, y) at the given point over the given region R.
at 
; R: |x + 8| ? 0.1, |y - 6| ? 0.1
A. |E| ? 0.04 B. |E| ? 0.02 C. |E| ? 0.01 D. |E| ? 0
Mathematics
Use the order of operations to simplify the expression.
A. 
B. 239
C. 2
D. 
Mathematics
Solve the system of equations using Cramer's rule.2x - y - 2z = -16x + 
y - 4z = 10
x + 
y - 
z = 15
A. (3, 10, 6) B. (5, 14, 6) C. (4, 12, 6) D. (4, 10, 7)
Mathematics
Write the expression in condensed form.5logb q - logb r
A. logb (q5 - r)
B. logb q5 ÷ logb r
C. logb 
D. logb 
Mathematics