Perform the indicated operation. Assume that all variables represent positive numbers.
(
- 
)
A. 7
- 7
B. 49
- 7
C. 35 - 49
D. 7
- 49
Answer: A
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A rectangular parking lot with a perimeter of 442 feet is to have an area of at least 8050 square feet. Within what bounds must the length of the rectangle lie? ?
A. 
B. 
C. 
D. 
E. 
Find the flux of the vector field F across the surface S in the indicated direction.F = x2y4i + yj - zk; S is the portion of the parabolic cylinder z = 9 - y2 for which 
and 3 ? x ? 5; direction is outward (away from the x-y plane)
A. 0 B. 108 C. 54 D. -108
Solve triangle ABC. Round side lengths and angle measures to the nearest tenth when necessary.a = 8.1, b = 13.4, c = 15.3
A. A ? 29.9°, B ? 61.0°, C ? 89.1° B. A ? 33.9°, B ? 59.0°, C ? 87.1° C. No triangle exists. D. A ? 31.9°, B ? 61.0°, C ? 87.1°
Solve the given exponential equation. Round answer to three decimal places.52x + 5(x + 1) - 24 = 0
A. {1.292} B. {1.147} C. {1.099} D. {0.683}