Answer:
13 units
Step-by-step explanation:
Put the numbers in the distance formula and do the arithmetic.
d = √((x2 -x1)² +(y2 -y1)²)
= √((3 -(-2))² +(-9-3)²) = √(5² +(-12)²) = √(25 +144)
d = √169 = 13
The distance between the points is 13 units.
Answer:
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Step-by-step explanation:
Answer:
The radius of the balloon is increasing at a rate of 4 feet per minute.
Step-by-step explanation:
We are given the following in the question:

Volume of sphere is given by

where r is the radius of the balloon.
Instant radius, r = 2 ft
Rate of change of volume =

Putting values, we get,

Thus, the radius of the balloon is increasing at a rate of 4 feet per minute.
The greatest common factor is 2 so divide the numerator and denominator by 2 to get:
1/5