Find the product.
A. - 
B. - 
C. 
D. 
Answer: C
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Find the domain and range and describe the level curves for the function f(x,y).f(x, y) = 
A. Domain: all points in the xy-plane; range: real numbers z ? 0; level curves: parabolas 
B. Domain: all points in the xy-plane excluding x = 0; range: all real numbers; level curves: parabolas 
C. Domain: all points in the xy-plane excluding x = 0; range: real numbers z ? 0; level curves: parabolas 
D. Domain: all points in the xy-plane; range: all real numbers; level curves: parabolas 
Estimate error made by using the partial sum S4 as an approximation to the sum S of the entire series.
A. 8.33 x 10-14 B. -1.00 x 10-11 C. -1.11 x 10-10 D. -9.09 x 10-13
Factor.20 + b12 - b24
A. (b12 + 4)(b12 - 5) B. (4 + b12)(5 - b12) or -1(b12 + 4)(b12 - 5) C. (b12 - 4)(b12 + 5) D. (4 - b12)(5 + b12) or -1(b12 - 4)(b12 + 5)
Express the number in scientific notation.870,000
A. 8.7 × 105 B. 8.7 × 104 C. 8.7 × 10-4 D. 8.7 × 10-5