Change the given polar coordinates (r, ?) to rectangular coordinates (x, y).(2, ?)
A. (2, 0)
B. (-2, 0)
C. (0, -2)
D. (0, 2)
Answer: B
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Solve the problem.A flare fired from the bottom of a gorge is visible only when the flare is above the rim. If it is fired with an initial velocity of 128 feet per second and the gorge is 240 feet deep, during what interval can the flare be seen? Use the formula h(t) = -16t2 + v0t + h0.
A. The flare can be seen between 9 sec and 11 sec. B. The flare can be seen up to, but not including, 3 sec. C. The flare can be seen between 6 sec and 8 sec. D. The flare can be seen between 3 sec and 5 sec.
Find the domain of f. Write your answer in interval notation.f(x) = 
A. [-13, ?) B. [13, ?) C. (-?, 13) D. (-?, -13)
Perform the indicated operations. Simplify the result, if possible.
- 
A. 
B. 
C. 
D. 
Evaluate the integral.
A. 
x3 - 16x + 
tan-1 
+ C
B. 
x3 - 16x + sin-1 
+ C
C. 
x3 - 16x + 
tan-1 
+ C
D. 
x3 - 255x + 
tan-1 
+ C