Write the number in scientific notation.9400
A. 9.4 × 10-2
B. 9.4 × 103
C. 9.4 × 102
D. 9.4 × 10-3
Answer: B
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Find the intervals on which the function is increasing and the intervals on which the function is decreasing.f(x) = - 
x2 + 9x - 8
A. Increasing on 
; decreasing on 
B. Increasing on 
; decreasing on 
C. Increasing on 
; decreasing on 
D. Increasing on 
; decreasing on 
Factor completely. If the polynomial cannot be factored, write prime.x2 - x - 30
A. (x + 1)(x - 30) B. (x + 6)(x - 5) C. (x + 5)(x - 6) D. Prime
Calculate the surface area of the given surface.The surface f(x,y) = x2 + y2, -1 ? x, y ? 2. (Hint: Do the first integral by substitution or using a formula from the Table of Integrals. Use numerical integration to do the outer integral.)
A. 35.5222 B. 18.4734 C. 25.3332 D. 29.3516
Divide.
A. 8.5 B. 7.5 C. 85 D. 75