Factor by grouping.r2 - 4r + rt - 4t
A. (r - 4)(r - t)
B. (r + 4)(r - t)
C. (r - 4)(r + t)
D. rt(r - 4)
Answer: C
Mathematics
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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 - 1| ? 0.1, |y - 1| ? 0.1
A. |E| ? 0.007 B. |E| ? 0.0057 C. |E| ? 0.0047 D. |E| ? 0.0089
Mathematics
Divide.
A. 5 B. 24 C. -5 D. -24
Mathematics
Simplify the expression.
A. 
B. 
C. 
D. 
Mathematics
Express the number in decimal notation.7.64 × 10-4
A. 0.00764 B. 0.000764 C. 0.0000764 D. -764,000
Mathematics