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 23,000 feet? Round your answer to the nearest tenth mile, if necessary.
A. 167.5 mi
B. 1403 mi
C. 14,030 mi
D. 185.0 mi
Answer: D
You might also like to view...
Determine the number of terms and identify the coefficient of each term of the expression.-6m + 2s - c
A. 3; 6, 2, -1 B. 3; -6, 2, 1 C. 3; 6, 2, 1 D. 3; -6, 2, -1
Find the center-radius form of the equation of the circle.center (-
, -2), radius 
A. (x + 
)2 + (y + 2)2 = 
B. (x - 
)2 + (y - 2)2 = 4
C. (x + 
)2 + (y + 2)2 = 2
D. (x - 
)2 + (y - 2)2 = 2
Solve the problem.A psychologist studying the effects of good nutrition on the behavior of rabbits feeds one group a combination of three foods, I, II, and III. Each of these foods contains three additives, A, B, and C, that are used in the study. The table below gives the percent of each additive that is present in each food. If the diet being used requires 19.1 g per day of A, 8.94 g of B, and 14.02 g of C, find the number of grams of food II that should be used each day. Let z represent the number of grams of food III.
A. 2.7z - 60 B. 1.8z + 54 C. 2.1z + 63 D. 128 - 3.2z
Use the graph to solve the problem. The graph shows the relationship between current I and resistance R if the voltage is fixed. Find the current if the resistance is 2.3?.
A. 0.2 A B. 0.8 A C. 0.6 A D. 0.4 A