Solve the problem.A field microphone used at a soccer game has a parabolic cross section and is 16 in. wide at the opening. The focus is 16 in. from the vertex. Find the depth of the microphone.
A. 16.00 in.
B. 4.00 in.
C. 0.44 in.
D. 1.00 in.
Answer: D
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Provide an appropriate response. Find the equation of the line that is normal to the line x + 5y = 7 and passes through the point (2, 4). Write the equation in standard form.
A. y = - 
x + 
B. y = 5x - 6
C. y = -x + 6
D. y = -5x + 14
Find the median. Round to the nearest tenth when necessary.The numbers of vehicles passing though a toll booth in one hour for five consecutive hours are as follows: 8, 10, 29, 35, 40
A. Median = 35 vehicles B. Median = 10 vehicles C. Median = 25.1 vehicles D. Median = 29 vehicles
If the given sequence is a geometric sequence, find the common ratio.
, 
, 
, 
A. not a geometric sequence
B. 
C. 3
D. 3
P(2 ? T ? 4); T is Exponential(1).
Find the probability for the given random variable.