Solve the problem.A field microphone used at a soccer game has a parabolic cross section and is 26 inches wide at the opening. The focus is 25 inches from the vertex. Find the depth of the microphone.

A. 1.69 in.
B. 27.04 in.
C. 6.76 in.
D. 0.75 in.


Answer: A

Mathematics

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A. Converges; 
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Solve the problem.Find the area of a trapezoid with short base of 37 yd, long base of 53 yd, and height of 55 yd.

A. 1500 yd2  B. 2500 yd2  C. 5000 yd2  D. 980 yd2

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Determine ? in decimal degrees. Round results to an appropriate number of significant digits.cos ? = 0.759

A. 41.0° B. 41° C. 69.0° D. 69°

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The table lists data that are exactly linear. (i) Find the slope-intercept form of the line that passes through these data points. (ii) Predict y when x = -1.5 and 4.6. 

A. y = -2.4x + 9; y = 12.6, y = -2.04 B. y = -2.4x - 9; y = -5.4, y = -20.04 C. y = 2.4x + 9; y = 5.40, y = 20.04 D. y = 2.4x - 9; y = -12.6, y = 2.04

Mathematics