Solve the problem.An arch for a bridge over a highway is in the form of a semiellipse. The top of the arch is 35 feet above ground (the major axis). What should the span of the bridge be (the length of its minor axis) if the height 30 feet from the center is to be 12 feet above ground?
A. 46.59 ft
B. 63.87 ft
C. 31.94 ft
D. 175 ft
Answer: B
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Solve the problem with estimation, but do not use a calculator. Use rounding to make the resulting calculations simple.Four people share the use of a cable modem service that costs $49.95 a month.
Fill in the blank(s) with the appropriate word(s).
Refer to the figures and recursive rules below to answer the following question(s).
Which of the figures above approximates the result of recursively applying Rule C infinitely many times?
A. Figure 2 B. Figure 4 C. Figure 1 D. Figure 3 E. none of these
Evaluate the expression, if possible.
A. 13 B. 28,561 C. 26 D. not a real number
Use the Gauss-Jordan method to solve the system of equations. x + 8y + 8z = 87x + 7y + z = 18x + 15y + 9z = -9
A. (0, 0, 1) B. (1, -1, 1) C. (-1, 0, 1) D. No solution