Solve.The area of a circle is found by the equation A = ?r2. If the area a of a certain circle is 64? square inches, find its radius r.
A. 8 inches
B. 128 inches
C. 32? inches
D. 16 inches
Answer: A
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Solve the problem.Which of the following are rules for computing finance charges on open installment loans: actuarial method, average daily balance method, rule of 78s, United States rule, banker's rule, previous balance method?
What will be an ideal response?
Solve the problem.A pulley of radius 13 cm rotates 9 times in 16 sec. Find the angular velocity of the pulley.
A. 
radians/sec
B. 
radians/sec
C. 
radians/sec
D. 
radians/sec
Find the torsion of the space curve.r(t) = (2t - 6)i + (t2 - 6)j + 5k
A. ? = -1 B. ? = 0 C. ? = 1 D. Undefined
Sketch the graph of the function. Also, find the domain and range of the function.f(x) = 
A. domain: x ? -1; range: y ? 0
B. domain: x ? 0; range: y ? -1
C. domain: x ? 1; range: y ? 0
D. domain: x ? 0; range: y ? 1