Without graphing, find the maximum value or minimum value.f(x) = (x + 3)2 - 7
A. 2
B. 4
C. 3
D. -7
Answer: D
Mathematics
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Solve the problem.A tank initially contains 140 gal of brine in which 60 lb of salt are dissolved. A brine containing 5 lb/gal of salt runs into the tank at the rate of 7 gal/min. The mixture is kept uniform by stirring and flows out of the tank at the rate of 5 gal/min. Write, in standard form, the differential equation that models the mixing process.
A. 
+ 
y = 35
B. 
+ 
y = 25
C. 
+ 
y = 35
D. 
= 35 - 
y
Mathematics
Find the slope of the curve at the given point P. y = -4x2 + 7x, P(5, 65)
A. -33 B. 3 C. 33 D. -13
Mathematics
List the ordered pair corresponding to the indicated point.
D
A. (3, 5) B. (-3, 4) C. (5, 3) D. (4, -3)
Mathematics
Provide an appropriate response.Evaluate 5x2y - 4xy - 5y for x = 4 and y = 2.
A. 118 B. 28 C. 108 D. 128
Mathematics