Solve and, when appropriate, round the answer to the nearest tenth.The distance d in miles that can be seen on the surface of the ocean is given by 
where h is the height in feet above the surface. How high (to the nearest foot) would a platform have to be to see a distance of 14.5 miles?
A. 210 ft
B. 93 ft
C. 97 ft
D. 315 ft
Answer: B
Mathematics
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Solve the problem. Assume that simple interest is being calculated in each case. Round the answer to the nearest cent unless otherwise indicated.Allan borrowed $4200 from his father to buy a car. He repaid him after 8 months with interest of 6% per year. Find the total amount he repaid.
A. $4347.00 B. $4452.00 C. $168.00 D. $4368.00
Mathematics
Multiply. Simplify the answer completely.- 
? 
A. - 
B. 
C. - 
D. 
Mathematics
Write the number as a product of a real number and i. Simplify the radical expression.
A. -50i
B. ± 50
C. i
D. 50i
Mathematics
Solve the exponential equation and approximate the result, correct to three decimal places.ex + e-x = 4
A. 1.4436, -1.4436 B. 1.297, -1.0739 C. 0.9115, -1.7224 D. 1.317, -1.317
Mathematics