Solve the problem.Sara is in charge of painting a mural on the side of a building. The wall is 48 meters long. The wall is 6x meters high up to the window ledge and it is 4y meters from the window ledge to the top. Write an expression with parentheses for the area of the wall. Then use the distributive property to write the expression without parentheses.
A. 48(6x + 4y) = 288x + 4y square meters
B. 6x(4y + 48) = 24xy + 288x square meters
C. 6x(4y + 48) = 24xy + 48 square meters
D. 48(6x + 4y) = 288x + 192y square meters
Answer: D
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Perform the indicated arithmetic.13
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A. 7
B. 18
C. 7
D. 17
Find the distance between P and Q and the coordinates of the midpoint of the segment joining P and Q.
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A bacteria culture is experiencing a growth pattern of 15% per hour in its population P; that is dP / dt = 015P; where P is the population of the culture and t is the time, in hours, from noon.
(a) Given that the town’s population at noon was 8000, find the solution of the equation assuming P0 = 8000 and k = 0.15 . (b) What will the population be at 5 pm? (c) What is the doubling time of the population?