Perform the following operations in the proper order. Write your answer in simplest form.7 + (-3) - 19 - (-2) + (-9)
A. 12
B. -22
C. -26
D. 36
Answer: B
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When a man with a parachute jumps from an airplane, he will fall 
feet in t seconds.
?
A: Plot the graph of the graph of distance fallen versus time. Use a horizontal span of 0 to 10 seconds.
?
B: Use the calculator to estimate the value of 
at 5 seconds after he jumps from the plane. Round your answer to two decimal places.
?
C: Explain in practical terms what the number you found in part B tells us. Round your answer to two decimal places.
What will be an ideal response?
Plot the parametric surface over the indicated domain.r(u, v) = u2sin vi + ucos vj + 4uk; 0 ? u ? 2?, 0 ? v ? 2?
A. 
B. 
C. 
D. 
How many subsets and proper subsets are in the given set?the set of words describing the colors on a stoplight
A. 16, 15 B. 8, 7 C. 7, 8 D. 15, 16
Specify the center and radius of the circle.5x2 + 5y2 + 20x + 30y - 15 = 0
A. center: (2, 3); radius: 16 B. center: (-2, -3); radius: 4 C. center: (-3, -2); radius: 4 D. center: (3, 2); radius: 16