A2 +b2= c2
a2 +25= 169
-25 -25
a2= 144
divide by the square root and
a= 12
B) 42 because it can't be more than 44 but it can't be less than 42 either.
The rate of change of the height is
in/min.
<h3>What is a right circular cylinder?</h3>
A right circular cylinder is a cylinder that has a closed circular surface having two parallel bases on both the ends and whose elements are perpendicular to its base. It is also called a right cylinder.
Volume of the cylinder = 
Rate of change of height is
= ?
At any time t,
Volume, V = 
Since r does not change with time, then r is a constant, so,
V = 
V = 
Differentiate both sides with respect to time t,
-------------(i)
Since
is given as 4
cu.in. per min,


in/min.
Hence, The rate of change of the height is
in/min.
To learn more about right circular cylinder from the given link:
brainly.com/question/2762448
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Answer: y = 3x - 6
Step-by-step explanation: A line that is parallel to another line must have the same slope, so you already have y = 3x + b. To find b, use the point that they give. b is the y-intercept, so just subtract 3(x) from the y coordinate of the point, where x is the x-coordinate of the given point.