90 or 100 something like that.
Answer:
A = 4
B = 2
2* (6 * 4) = 48
<u><em>Please mark as brainliest if answer is right </em></u>
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Answer:
The rate of change of the volume of the cylinder at that instant = 
Step-by-step explanation:
Given:
Rate of increase of base of radius of base of cylinder = 7 mm/hr
Height of cylinder = 1.5 mm
Radius at a certain instant = 12 mm
To find rate of change of volume of cylinder at that instant.
Solution:
Let
represent radius of base of cylinder at any instant.
Rate of increase of base of radius of base of cylinder can be given as:

Volume of cylinder is given by:

Finding derivative of the Volume with respect to time.

Plugging in the values given:


Using 

(Answer)
Thus rate of change of the volume of the cylinder at that instant = 
Answer:
Picture
Step-by-step explanation:
I am not sure if this is what you want
Answer:
55
Step-by-step explanation:
the four number is 26+27+28+29
so 26+29=55