Solve the formula for the indicated variable.r = 
for V
A. V = 
B. V = 3?r2h
C. V = 
D. V = 
Answer: D
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Indicate whether the equation determines y to be a function of x.
?
?
A. yes B. no
Decide whether the given sequence is finite or infinite.a1= 5, a2= 9; for 3 ? n ? 30, an= 4?an-1+ 5?an-2
A. Finite B. Infinite
Use Newton's Law of Cooling, T = C + (T0 - C)ekt, to solve the problemMostacolli baked at 375°F is taken out of the oven into a kitchen that is 69°F. After 6 minutes, the temperature of the mostacolli is 324.6°F. What will its temperature be 19 minutes after it was taken out of the oven? Round your answer to the nearest degree.
A. 230°F B. 242°F C. 237°F D. 249°F
Find all values of ? if ? is in the indicated interval and has the given function value. Give approximations to as many decimal places as your calculator displays.cos ? = 0.32950901; ? in the interval [0, 2?)
A. 1.23501283, 1.90657982 B. 2.80580916, 0.3357835 C. 1.23501283, 4.37660549 D. 1.23501283, 5.04817248