Find the minimum, maximum, range, mean, and median for the data set. 2.4, 2.6, 7.2, 5.5, 4.1, 5.5, 6.1, 6.1 A. minimum: 2.4 maxi
1 answer:
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Answer:
Volume of the cone is increasing at the rate .
Step-by-step explanation:
Given: The radius of a right circular cone is increasing at a rate of in/s while its height is decreasing at a rate of
in/s.
To find: The rate at which volume of the cone changing when the radius is in. and the height is
in.
Solution:
We have,
,
,
,
Now, let be the volume of the cone.
So,
Differentiate with respect to .
Now, on substituting the values, we get
Hence, the volume of the cone is increasing at the rate .
Answer: The area of the mirror is 113.14 sq. inches [approx.].
Step-by-step explanation: Given that a circular can till 375 ft² of land in 15 min.
We are to find the area of the mirror in square inches.
The AREA of a circle with radius 'r' units is given by
The diameter of the circular mirror is 12 inches, so the radius of the mirror will be
Therefore, the area of the circular mirror is
Thus, the area of the mirror is 113.14 sq. inches [approx.].