Find a value of ? in [0°, 90°] that satisfies the statement. Leave answer in decimal degrees rounded to seven decimal places, if necessary.tan ? = 1.5047547
A. 33.6064283°
B. 236.393572°
C. 56.3935717°
D. 123.606428°
Answer: C
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Solve.The frequency F of a vibrating string varies inversely as its length L. A particular violin string is 25.8 cm long and vibrates at 440 Hz. What length of that string will vibrate at 
Round your answer to the nearest tenth.
A. 28.8 cm B. 92.3 cm C. 23.1 cm D. 524.4 cm
Solve the problem.A building contractor finds that 
can of pipe joint compound is needed to plumb each new home. How many homes can be plumbed with 12 cans of compound?
A. 12 homes
B. 60 homes
C. 15 homes
D. 2
homes
Determine the vertex, focus, and directrix of the parabola and sketch its graph.x2 - 14x + 4y + 65 = 0
A. vertex: (7, -4)
focus: (8, -4)
directrix: x = 6
B. vertex: (7, -4)
focus: (7, -5)
directrix: y = -3
C. vertex: (7, 4)
focus: (7, 3)
directrix: y = 5
D. vertex: (7, -4)
focus: (6, -4)
directrix: x = 8
Find the length in feet of 42-m fence.
a. 137.76 ft b. 12.8 ft c. 38.53 ft d. 45.78 ft