Solve the equation.
- 
= 8
A. 
B. 16
C. 18
D. 72
Answer: A
Mathematics
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For the curve r(t), write the acceleration in the form aTT + aNN.r(t) = 
(1 + t)3/2i + 
(1 - t)3/2j + 1tk
A. a = 
N
B. a = 1
T
C. a = 1
N
D. a = T + 1
N
Mathematics
Provide an appropriate response.Evaluate 36(42 - 6) - 18.92 following the order of operations using a calculator.
A. 53.08 B. -8.92 C. 341.08 D. -321.12
Mathematics
Solve the problem.An airplane flying faster than the speed of sound creates sound waves that form a cone. If ? is the vertex angle of the cone and m is the Mach number for the speed of the plane, then 
Find the Mach number to the nearest tenth if 
A. 5 B. 3.9 C. 3.7 D. 4.5
Mathematics
Multiply.(x - 3)(7x2 + x + 8)
A. 7x3 - 20x2 + 11x - 24 B. 7x3 - 22x2 + 5x - 24 C. 7x3 + 20x2 + 5x - 24 D. 7x3 - 20x2 + 5x - 24
Mathematics