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 10 feet above ground?

A. 117.17 ft
B. 116 ft
C. 33.49 ft
D. 66.97 ft


Answer: D

Mathematics

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Factor completely, or state that the polynomial is prime.x3 - 5x2 - 9x + 45

A. (x + 5)(x + 3)(x - 3) B. prime C. (x - 5)(x + 3)(x - 3) D. (x - 5)(x - 3)2

Mathematics

Solve.Mike works on commission selling electronic equipment. The linear function  describes his annual income I when his total sales for the year are s. What is I(0). What does this result mean?

A. $28,000; this is Mike's annual salary if his total sales for the year are zero B. $28,000; this is the amount of sales for which Mike's annual salary is zero C. $28,000.03; this is the increase in Mike's annual salary for each $1000 increase in his sales D. $28,000.03; this is Mike's annual salary if his total sales for the year are zero

Mathematics

Solve the problem. Round stock turnover to the nearest hundredth and dollar amounts to the nearest cent.A furniture store has an average inventory of  at retail, and an average inventory of  at cost. The cost of goods sold for the same period is $17,311.32 and sales of furniture were . Find (a) Stock turnover at cost, and (b) stock turnover at retail.

A. (a) 1.44, (b) 1.43 B. (a) 4.68, (b) 4.65 C. (a) 4.65, (b) 4.68 D. (a) 3.26, (b) 6.67

Mathematics

Complete the table of values. Write the results as ordered pairs.x - 8 = 0

A. (8, -7); (8, -2); (8, 5) B. (-15, -7); (-10, -2); (-3, 5) C. (1, -7); (6, -2); (13, 5) D. (-56, -7); (-16, -2); (40, 5)

Mathematics