Solve the problem. Round your answer, if appropriate.One airplane is approaching an airport from the north at 183 km/hr. A second airplane approaches from the east at 297 km/hr. Find the rate at which the distance between the planes changes when the southbound plane is 35 km away from the airport and the westbound plane is 23 km from the airport.
A. -632 km/hr
B. -474 km/hr
C. -316 km/hr
D. -158 km/hr
Answer: C
Mathematics
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Find the zeros of the function. Give exact answers.f(x) = x2 - 3x - 9
A. 
B. 
C. 
D. 
Mathematics
Find all the first order partial derivatives for the following function.f(x, y) = 2x - 6y2 - 5
A. 
= 2; 
= -12y
B. 
= -3; 
= -12y - 5
C. 
= -12y; 
= 2
D. 
= 2x; 
= -12y
Mathematics
Find the decimal equivalent of the fraction.
A. 0.635 B. 0.585 C. 0.525 D. 0.625
Mathematics
Provide an appropriate response. Use the sine function to find length b of right triangle ABC given c = 17.4 ft and B = 23°. Round to four significant digits.
A. 16.02 ft B. 6.799 ft C. 18.90 ft D. 44.53 ft
Mathematics