Simplify by combining like terms.-10xy + 4xy
A. -6x2y2
B. 14xy
C. -6 + xy
D. -6xy
Answer: D
Mathematics
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Solve the problem.An object of mass m is dropped from a helicopter. Assuming that air resistance is proportional to velocity, the velocity v of the object satisfies the equation 
Find velocity as a function of time.
A. v = 
(1 - e-kt/m)
B. v = 
- e-kt/m
C. v = 
(1 - ekt/m)
D. v = 
(1 - e-kt/m)
Mathematics
Provide an appropriate response.The beneficiary pays the insurance premiums to the underwriter.
A. True B. False
Mathematics
Find the center and radius of the circle.x2 + (y - 8)2 = 49
A. (-8, 0); 49 B. (8, 0); 49 C. (0, 8); 7 D. (0, -8); 7
Mathematics
Use synthetic division to find the quotient and remainder.(x3 - 1) ÷ (x - 1)
A. x3 + x2 + x + 1
B. x2 + x + 1 + 
C. x2 + x + 1
D. x3 + x2 + x + 1 + 
Mathematics