Simplify the expression without a calculator. Assume variables are positive.
A) -5x
Mathematics
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At the minimum value, a valley, for a function 
, the rate of change 
is 0.
Answer the following statement true (T) or false (F)
Mathematics
Translate the problem to a system of equations, then solve using Cramer's Rule.Twice the water flow in the hot-water pipe is the same as three times the flow in the cold-water pipe. The combined flow is 1200 liters per hour. What is the flow in each pipe?
A. 600 liters/hr hot, 400 liters/hr cold B. 400 liters/hr hot, 600 liters/hr cold C. 720 liters/hr hot, 480 liters/hr cold D. 480 liters/hr hot, 720 liters/hr cold
Mathematics
Find an equivalent equation in rectangular coordinates.r = 
A. 6x + 4y = 5
B. 6y + 4x = 5
C. 6x - 4y = 25
D. 6y + 4x = 
Mathematics
Solve.log (5x + 5) = 2
A. 
B. 19
C. - 
D. - 19
Mathematics