Find the exact value of the expression.tan-1 (-1)
A. - 
B. 
C. 
D. 
Answer: A
Mathematics
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Find all real numbers that satisfy the equation.tan x = 
A. 
B. 
C. 
D. 
Mathematics
Graph the function.
A. 
B. 
C. 
D. 
Mathematics
Solve the quadratic equation by completing the square.y2 + 5y - 5 = 0
A. 
B.
-5 ± 3
C. 
D. 
Mathematics
Solve.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. 27,041 lb
B. 26,339 lb
C. 26,471 lb
D. 26,503 lb
Mathematics