Solve the problem.Under certain conditions the wind speed S, in miles per hour, of a tornado at a distance d from its center can be approximated by the function 
where a is an atmospheric constant, and V is the approximate volume of the tornado, in cubic feet. Assume that a is 0.78, and find SV.
A. 
B. 
C. 
D. 
Answer: B
Mathematics
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Find the exact value of the sum.sin 105° + sin 15°
A. 
B. 
C. - 
D. 
Mathematics
Find the value of k so that the equation will have exactly one rational solution.49x2 + kx + 64 = 0
A. 56 or -56 B. 112 C. 112 or -112 D. -112
Mathematics
Add or subtract horizontally.(5x5 - 5x4 + 8x2 - 9x + 10) - (15x5 + x3 - 4x2 - 3x + 1)
A. 10x5 - 5x4 - x3 - 5x + 10 B. -10x5 - 5x4 - x3 + 12x2 - 6x + 9 C. -10x5 - 5x4 + x3 + 11x2 + 6x - 9 D. -10x5 - 5x4 + x3 + 4x2 - 12x + 11
Mathematics
Solve.In a race, Car A starts 1 mile behind Car B. Car A is traveling at 55 miles per hour, while Car B is traveling at 40 miles per hour. How long will it take for Car A to overtake Car B?
A. 4 minutes
B. 2
minutes
C. 16 minutes
D. 
minutes
Mathematics