Solve the problem.A bridge is built in the shape of a semielliptical arch. It has a span of 94 feet. The height of the arch 30 feet from the center is to be 6 feet. Find the height of the arch at its center.
A. 9.4 ft
B. 6.33 ft
C. 7.79 ft
D. 30.25 ft
Answer: C
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Solve the problem.A cellular phone plan had the following schedule of charges:Basic service, including 100 minutes of calls$20.00 per month2nd 100 minutes of calls$0.075 per minuteAdditional minutes of calls$0.10 per minuteWhat is the charge for 200 minutes of calls in one month?What is the charge for 250 minutes of calls in one month?Construct a function that relates the monthly charge C for x minutes of calls.
What will be an ideal response?
Subtract.- 
A. 3.21 B. 3.2082 C. 3.2092 D. 3.2091
Write the augmented matrix for the system of equations. 6x + 9y + 6z= 54 4x + 2y + 7z= 17 3x - 2y + 2z= 2
A. 
B. 
C. 
D. 
Solve the equation by factoring.4x2 - 28x + 40 = 0
A. {4, 2, 5} B. {2, 5} C. {-2, -5} D. {0, 2, 5}