For an arc length s, area of sector A, and a central angle ? of a circle of radius r, find the indicated quantity.r = 81.6 cm, ? = 
radians, find A
A. 417 cm2
B. 16.1 cm2
C. 2,620 cm2
D. 1,310 cm2
Answer: D
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Type A grain containing 31.00% fiber is mixed with type B grain containing 6% fiber to make 556 pounds of feed. The resulting mixture is to contain 90.86 pounds of fiber. Round your answers to two decimal places. ? How much of each type of grain goes in the mixture? ?
A. 260.00 pounds of type A and 296.00 pounds of type B B. 230.00 pounds of type A and 326.00 pounds of type B C. 296.00 pounds of type A and 260.00 pounds of type B D. 326.00 pounds of type A and 230.00 pounds of type B
Find all complex roots. Write the answer in polar form, with 0 ? ? ? 360°.Cube roots of 64
A. 4(cos 45° + i sin 45°), 4(cos 165° + i sin 165°), 4(cos 325° + i sin 325°) B. 4(cos 0° + i sin 0°), 4(cos 60° + i sin 60°), 4(cos 120° + i sin 120°) C. 4(cos 90° + i sin 90°), 4(cos 210° + i sin 210°), 4(cos 330° + i sin 330°) D. 4(cos 0° + i sin 0°), 4(cos 120° + i sin 120°), 4(cos 240° + i sin 240°)
Use a calculator to approximate the square root. Round to three decimal places.
A. 14.933 B. 14.920 C. 14 D. 14.948
Decide whether the limit exists. If it exists, find its value.
f(x) and
f(x)
A. 4, -1 B. -4, -1 C. 4, 1 D. -1, 4