A vertical beam of a searchlight, S, illuminates a cloud at P. An observer, Q, 100 feet from S measures the angle of elevation to P as 82°. How high is the cloud?
711.5'
Mathematics
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Find the extreme values of the function subject to the given constraint.
A. Maximum: none; minimum: 
at 
B. Maximum: none; minimum: 
at 
C. Maximum: none; minimum: 
at 
D. Maximum: none; minimum: 
at 
Mathematics
Solve the proportion.
= 
A. 20
B. 
C. 
D. 
Mathematics
Add or subtract as indicated. Express the answer in pounds and ounces.23 lb 14 oz - 15 lb 9 oz
A. 7 lb 5 oz B. 39 lb 7 oz C. 38 lb 7 oz D. 8 lb 5 oz
Mathematics
Solve the problem.A building has an entry with the shape of a parabolic arch 92 feet high and 42 feet wide at the base. Find an equation for the parabola if the vertex is placed at the origin of the coordinate system.
A. y2 = -19.2x B. y2 = -4.8x C. x2 = -4.8y D. x2 = -19.2y
Mathematics