Find an equation for the tangent to the curve at the given point.y = 
, (5, 31.25)
A. y = 
x - 
B. y = 
x - 
C. y = 
x + 
D. y = 
x + 
Answer: A
Mathematics
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Construct a phase line. Identify signs of y' and y".
= (y + 1)(y - 2)
A. 
B. 
C. 
D. 
Mathematics
Solve the problem.The perimeter of a rectangle is 36 cm. One side is 10 cm longer than the other side. Find the lengths of the sides.
A. 8, 18 B. 4, 10 C. 4, 14 D. 9, 19
Mathematics
Use Gaussian elimination to find the complete solution to the system of equations, or state that none exists.x + 3y + 2z=114y + 9z=-12x + 7y + 11z=- 1
A. {(
+ 20, 
+ 3, z)}
B. {(
+ 20, - 
+ 3, z)}
C. {(
+ 20, - 
- 3, z)}
D. {(- 
+ 20, - 
+ 3, z)}
Mathematics
Find all numbers for which the rational expression is not defined.
A. None B. a = -3 C. a = 3 D. a = 0
Mathematics