Find the coordinates of the centroid of the curve.Find the coordinates of the centroid of the curve x = 4 cos t + 4t sin t, y = 4 sin t - 4t cos t, 
A. (
, 
) = 
B. (
, 
) = 
C. (
, 
) = 
D. (
, 
) = 
Answer: B
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Solve the problem.If f(x) = -7x + 1 and g(x) = 9x2 - 4x - 7, find g(f(-3)).
A. -601 B. 155 C. 4261 D. 103
Solve. Answer with a complete sentence.Find the area of a rectangle measuring 4.2 yards by 13.71 yards.
A. The area of the rectangle is 17.64 square yards. B. The area of the rectangle is 115.164 square yards. C. The area of the rectangle is 17.91 square yards. D. The area of the rectangle is 57.582 square yards.
Classify the number as one or more of the following: whole number, integer, rational number, irrational number, or real number. 3.9
A. Integer, rational number, real number B. Real number C. Rational number D. Rational number, real number
Solve the problem.120 students attended an assembly at Piper School. The student enrollment at the school is 480. What percentage of the students did not attend the assembly?
A. 60% B. 75% C. 85% D. 70%