It's like an equal sign but with 3 lines, not two
like this <span>≡
</span>I think it's called a triple bar.
Answer:
yea
Step-by-step explanation:
Answer: No he would have 8.5$
Step-by-step explanation:
15 - 8.50 = 6.50$ + 20$ = 8.5 so no he would be 1.5$ short
Answer:
The diameter decreases at the rate of 0.0796 cm/min when the diameter is 10 cm.
Step-by-step explanation:
A snowball is spherical, so it's area is given by the following formula:

The radius is half the diameter so:



If a snowball melts so that its surface area decreases at a rate of 5 cm2/min, find the rate at which the diameter decreases when the diameter is 10 cm.
We have to find
when 

Applying implicit differentiation:
We have to variables(A and d), so:




The diameter decreases at the rate of 0.0796 cm/min when the diameter is 10 cm.