If the number in the statement is written in scientific notation, write it without exponents. If it is written without exponents, write it in scientific notation.The speed of light is 1.86 × 105 miles per hour.
A. 1,860,000
B. 186,000
C. 0.0000186
D. 18,600,000
Answer: B
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Determine the largest open intervals of the domain over which the function is increasing, decreasing, and constant.
A. Increasing (3, ?); Decreasing (-3, ?); Constant (-3, 3) B. Increasing (-?, 3); Decreasing(-?, -3); Constant (-3, 3) C. Increasing (3, ?); Decreasing (-?, -3); Constant (-3, 3) D. Increasing (-?, 3); Decreasing (-3, ?); Constant (-3, 3)
Solve the problem.A formula for calculating the distance, d, one can see from an airplane to the horizon on a clear day is 
where x is the altitude of the plane in feet and d is given in miles. How far can one see in a plane flying at 20,000 feet? Round your answer to the nearest tenth mile, if necessary.
A. 12,200 mi B. 172.5 mi C. 1220 mi D. 156.2 mi
Find the function value. If the result is irrational, round your answer to the nearest thousandth.Let f(x) = 
x. Find f
.
A. 15.588
B. 0.064
C. 
D. 1.357
Find the least common multiple of the given polynomials.x2- 6x+ 5, x2+ 3x- 4
A. (x - 1)(x + 4) B. (x - 5)(x - 1)(x + 4) C. (x + 5)(x + 1)(x + 4) D. (x - 5)(x - 1)