Answer:
12
Step-by-step explanation:
Volume of cylinder is pi*r^2*h (this is equal to 540pi in this case)
So we have 540pi=pi*r^2*h
this means that 540=r^2*h (I just divided both sides by pi since both sides were being multiplied by pi)
The height,h, is 15 so plug in 540=r^2*15
Divide both sides by 15 giving 540/15=r^2
So r^2=36
So r=6
The diameter,d, is twice the radius, r.
So d=2(6)=12
Use Desmos helps with graphing Hope that helps.
During the first minute, the elevation dropped 3 feet.
Work:
1 minute \ -3 ft
2 minutes \ -6 ft
3 minutes \ -9 ft
4 minutes \ -12 ft
OR
12/4 = 3 ft
Answer:(-3 + 2i) × (2 + i)
Multiply this by using FOIL: First, Outside, Inside, Last.
Multiply the First numbers, -3 × 2.
Multiply the Outside numbers, -3 × i.
Multiply the Inside numbers, 2i × 2.
Multiply the Last numbers, 2i × i.
Use the distributive property to show FOIL: -3(2 + i) + 2i(2 + i).
Distribute the -3 to 2 + i and 2i to 2 + i.
Rewrite i² as -1.
-6 - 3i + 4i + 2(-1)
Now combine like terms, -6 - 2 and -3i + 4i.
-8 + i is your answer.
Step-by-step explanation:
Answer:
2.35
Step-by-step explanation:
2 x 2 eqaul 9 times 2
