Solve the problem.The price p (in dollars) and the quantity x sold of a certain product obey the demand equation x = -10p + 280, 0 ? p ? 28.What quantity x maximizes revenue? What is the maximum revenue?
A. 280; $1960
B. 70; $1470
C. 140; $1960
D. 210; $1470
Answer: C
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Solve using the multiplication principle.18 = -3k
A. 21 B. -6 C. -21 D. 1
Solve the problem.One conveyor belt can move 1000 boxes in 6 minutes. Another can move 1000 boxes in 8 minutes. If another conveyor belt is added and all three are used, the boxes are moved in 3 minutes. How long would it take the third conveyor belt alone to do the same job?
A. 1 min
B. 24 min
C. min
D. min
Determine how many of the first 5 statements in the sequence obtainable from the given statement are true.2n < n2
A. 5 B. 3 C. 2 D. 4
Transform the polar equation to an equation in rectangular coordinates. Then identify and graph the equation.r sin ? = 4
A.
y = -4; horizontal line 4 units
below the pole
B.
y = 4; horizontal line 4 units
above the pole
C.
x = -4; vertical line 4 units
to the left of the pole
D.
x = 4; vertical line 4 units
to the right of the pole