Solve the problem.The force needed to keep a car from skidding on a curve varies jointly as the weight of the car and the square of the car's speed, and inversely as the radius of the curve. If a force of 
is needed to keep an 
car traveling at 20 mph from skidding on a curve of radius 
what force would be required to keep the same car from skidding on a curve of radius 
style="vertical-align: -4.0px;" /> at 
Round your answer to the nearest pound of force?
A. 24,413 lb
B. 24,545 lb
C. 25,115 lb
D. 24,577 lb
Answer: B
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A country has four states. Suppose the population of State 1 is P1, the population of State 2 is P2, the population of State 3 is P3, and the population of State 4 is P4. Suppose also that the total number of seats in the legislature is M and the standard divisor is D.If A is the modified divisor used for Adams's method, then
A. A is always less than or equal to D. B. A is always greater than or equal to D. C. A can be less than, equal to, or greater than D. D. A is always equal to D. E. none of these
At what points is the given function continuous?f(x, y) = 
A. All (x, y) such that x ? 0
B. All (x, y)
C. All (x, y) satisfying x - y ? 0
D. All (x, y) such that x ? 
and x ? -2
Solve the system by the substitution method.
A. (1, 0), (-1, 0) B. (1, 0) C. (-1, 0) D. ?
Solve the problem.Employees of a publishing company received an increase in salary of 
plus a bonus of 
Let 
represent the new salary in terms of the previous salary x. Find and interpret 
A. $11,495; If an employee's old salary was $11,495, then his/her new salary was $13,000 after the increase and bonus. B. $22,800; If an employee's old salary was $22,800, then his/her new salary was $13,000 after the increase and bonus. C. $14,610; If an employee's old salary was $13,000, then his/her new salary was $14,610 after the increase and bonus. D. $13,700; If an employee's old salary was $13,000, then his/her new salary was $13,700 after the increase and bonus.