Solve the problem.The gravitational attraction A between two masses varies inversely as the square of the distance between them. If the force of attraction is 9 lb when the masses are 2 ft apart, what is the attraction when the masses are 6 ft apart?
A. 1 lb
B. 4 lb
C. 2 lb
D. 3 lb
Answer: A
Mathematics
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Determine whether the following is always true or not always true. Given reasons for your answers.(u × v) ? v = u ? (u × v)
What will be an ideal response?
Mathematics
Find an equation for the tangent to the curve at the given point.y = x2 - 1, (-4, 15)
A. y = -8x - 34 B. y = -8x - 17 C. y = -4x - 17 D. y = -8x - 33
Mathematics
Solve.x2 - 108 = 0
A. ±18
B. 18
C. ±6
D. 6
Mathematics
Solve the quadratic equation by factoring.9y2 + 21y + 10 = 0
A. - 
, - 
B. - 
, - 
C. 
, 
D. 
, - 
Mathematics