Name the conic.
A. parabola
B. hyperbola
C. circle
D. ellipse
Answer: C
Mathematics
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Find a function of the form y = sin bx given the period.
A. y = sin 10x
B. y = sin 
x
C. y = sin 5x
D. y = sin 5?x
Mathematics
Solve the problem.An airplane is sighted at the same time by two ground observers who are 5 miles apart and both directly west of the airplane. They report the angles of elevation as 15° and 
How high is the airplane?
A. 1.29 mi B. 5.14 mi C. 3.15 mi D. 2.11 mi
Mathematics
Find the mean for the frequency distribution. Round to the nearest tenth.
A. 23.6 B. 29.3 C. 2.2 D. 24.5
Mathematics
Perform the indicated operation and express in lowest terms.
÷ 
A. z - 9
B. 
C. 
D. 
Mathematics