Write the equation of the line with the given slope and y-intercept.m = -4, b = 9
A. y = -4x + 9
B. y = -9x + 4
C. y = 4x - 9
D. y = 9x - 4
Answer: A
Mathematics
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Solve the problem, if possible. Round your answer to the nearest tenth, when appropriate.The area of a square is 81 cm2. If the same amount is added to one dimension and removed from the other, the resulting rectangle has an area 9 cm2 less than the area of the square. How much is added and subtracted?
A. 4 cm B. 9 cm C. 3 cm D. Cannot be determined without additional information
Mathematics
Find the area of the surface generated when the given curve is revolved about the x-axis. y = 3x + 5 on [0, 2]
A. 32?
B. 
C. 28
?
D. 32
?
Mathematics
Multiply.
A. 9144 B. 9152 C. 1044 D. 9136
Mathematics
Graph the equation.f(x) = x2 - 4
A. 
B. 
C. 
D. 
Mathematics