Determine if the parabola whose equation is given opens upward or downward.y = -x2 + 2x - 3
A. upward
B. downward
Answer: B
Mathematics
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Use the shell method to find the volume of the solid generated by revolving the region bounded by the given curves and lines about the y-axis.y = 3x2, y = 3
A. 
?
B. 
?
C. 
?
D. 
?
Mathematics
Solve and check.-14 + n = 20
A. n = -6 B. n = 34 C. n = 6 D. n = -34
Mathematics
Solve the problem.Find the measure of the smaller angle formed by the hands of the clock shown.
A. 60° B. 120° C. 110° D. 150°
Mathematics
Simplify the complex fraction.
A. 
B. 12
C. 1
D. 
Mathematics