$V = \pi r^2 h \\ \\ \frac{dV}{dt} = 2\pi r h \frac{dr}{dt} + \pi r^2 \frac{dh}{dt} \\ \\ -5 =2 \pi (500)(.01)\frac{dr}{dt} + \pi (500^2)(-.001) \\ \\ \frac{dr}{dt} = \frac{250 \pi -5}{10 \pi} = \frac{50 \pi - 1}{2 \pi}$

7 0

3 years ago

You can buy a box of 150 sharpie pens for $165 or a dozen for $13.50

Setler [38]

Answer: do the a dozen for $13.50

Step-by-step explanation: It will help save money

5 0

2 years ago

There were 6.04 gallons of water in Karen's bathtub. Then 0.24 gallons drained out. How much water is left in the bathtub?

san4es73 [151]

Answer:

5.8 gallons in tub

Step-by-step explanation:

6.04-.24=5.8

8 0

2 years ago

An auditorium has 20 seats on the first row, 24 seats on the second row, 28 seats on the third row, and so on and has 30 rows of

Lilit [14]

Answer:

140

Step-by-step explanation:

20+4(s)=

20+4(30)=

20+ 120=

140

8 0

2 years ago