Solve.A recipe for fudge brownies calls for 2
cups of cocoa per batch. If you are making 2
batches, how many cups of cocoa are needed?
A. 1
cups
B. 4
cups
C. 5
cups
D. 1
cups
Answer: C
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Construct a truth table to determine when the lightbulb is on. That is, determine which switches must be open and which switches must be closed for the lightbulb to be on. 
A. The lightbulb will be on when p, q, and r are all closed; when p and q are closed and r is open; or when p and r are closed and q is open.
B. The lightbulb will be on when p, q, and r are all closed; when p and q are closed and r is open; when p and r are closed and q is open; or when p is closed and q and r are open.
C. The lightbulb will be on in all cases except when p and r are open and q is closed.
D. The lightbulb will be on when p and r are closed and q is open.
Determine whether the graph of the given equation is symmetric with respect to the x-axis, the y-axis, and/or the origin.y = -5x2 - 1
A. y-axis B. No symmetry C. x-axis D. Origin
The letters r and ? represent polar coordinates. Write the equation using rectangular coordinates (x, y).r = 10 sin ?
A. 
= 10y
B. x2 + y2 = 10y
C. x2 + y2 = 10x
D. 
= 10x
Find the center and the radius of the circle.x2 + (y + 8)2 = 15
A. center (-8, 0); radius = 
B. center (0, -8); radius = 
C. center (0, -8); radius = 225
D. center (0, -8); radius = 15