Solve the problem.Consider the following simplified digital photograph that has a 3 × 3 grid with four gray levels numbered from 0 to 3. It shows a letter Y in black on a light gray background.
Let A be the 3 × 3 matrix that represents this figure digitally. Find the matrix A.
A. 
B. 
C. 
D. 
Answer: B
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Factor, if possible.y2 + 9y + 20
A. (y - 5)(y - 4) B. (y - 5)(y + 4) C. (y + 20)(y + 1) D. (y + 5)(y + 4)
Write as a percent.0.5
A. 0.5% B. 500% C. 0.05% D. 50%
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. 30,857 lb
B. 31,427 lb
C. 30,725 lb
D. 30,889 lb
Graph the equation.2x + 3y - 10 = 0
A. 
B. 
C. 
D. 