How high do we need to be on Earth to see 7 miles?
On Earth, the distance to the horizon is given by 
, where d is in miles to the horizon and h is in feet above sea level.
Mathematics
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Find the acute angle ?, to the nearest hundredth of a degree, for the given function value.sec ? = 6.965
A. 8.25° B. 81.74° C. -8.17° D. 8.17°
Mathematics
Find the unknown number in the proportion. Round answer to the nearest hundredth when necessary.
= 
A. x = 24.84 B. x = 113.07 C. x = 0.04 D. x = 9.06
Mathematics
Solve the problem. Round your answer to the nearest tenth.Find the work done by a force of 200 pounds acting in the direction 
in moving an object 75 feet from (0, 0) to (-75, 0).
A. 13,416.1 ft-lb B. 15,000.0 ft-lb C. 6708.2 ft-lb D. 8944.9 ft-lb
Mathematics
Solve the equation.2z3 = 16z2 - 30z
A. -5, -3, 0 B. 0, 3, 5 C. -5, 0, 3 D. -3, 0, 5
Mathematics