Find the parametrization for the curve.The circle with center (9, 6) and radius 3
A. x = 9 + 3 cos t, y = 6 + 3 sin t, for 0 ? t ? 2?
B. x = -9 + 3 sin t, y = -6 + 3 cos t, for 0 ? t ? 2?
C. x = 9 + 9 cos t, y = 6 + 9 sin t, for 0 ? t ? 2?
D. x = 9 + 3t, y = 6 + 3t, for 0 ? t ? 2?
Answer: A
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Solve the inequality and write the solution set in interval notation.
t ? - 60
A. (-?, 80] B. [80, ?) C. (-?, -80] D. [-80, ?)
Express the number in scientific notation.0.000347
A. 3.47 × 10-5 B. 3.47 × 10-4 C. 3.47 × 104 D. 3.47 × 10-3
Solve the problem.Two pipes together can fill a large tank in 10 hr. One of the pipes, used alone, takes 15 hr longer than the other to fill the tank. How long would each pipe take to fill the tank alone?
A. 12.5 hr; 27.5 hr B. 25 hr; 40 hr C. 10 hr; 25 hr D. 15 hr; 30 hr
Determine i) the domain of the function, ii) the range of the function, iii) the domain of the inverse, and iv) the range of the inverse.f(x) = 
A. f(x): D = 
, R = 
;
f-1(x): D is all real numbers, R = 
B. f(x): D = 
, R is all real numbers;
f-1(x): D is all real numbers, R = 
C. f(x): D = 
, R = 
;
f-1(x): D = 
, R = 
D. f(x): D = 
, R = 
;
f-1(x): D = 
, R = 