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 2.25 lb when the masses are 4 ft apart, what is the attraction when the masses are 6 ft apart?
A. 4 lb
B. 1 lb
C. 3 lb
D. 2 lb
Answer: B
Mathematics
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Solve the equation.40 = - 
x
A. 
B. 
C. {- 48}
D. 
Mathematics
Find the intercepts of the function f(x).f(x) = x3 + 8x2 - x - 8
A. x-intercepts: 1, -2, 4; y-intercept: -8 B. x-intercepts: 1, -1, 8; y-intercept: -8 C. x-intercepts: -1, -2, -4; y-intercept: -8 D. x-intercepts: 1, -1, -8; y-intercept: -8
Mathematics
Provide an appropriate response.In your own words, describe the procedure for adding any two rational expressions.
What will be an ideal response?
Mathematics
Solve the problem.If two planes leave an airport at the same time with one flying west at 740 miles per hour and the other flying east at 57 0 miles per hour, how long will it take them to be 3930 miles apart?
A. 2.5 hours B. 2 hours C. 3 hours D. 4 hours
Mathematics