Let
h: height of the water
r: radius of the circular top of the water
V: the volume of water in the cup.
We have:
r/h = 3/10
So,
r = (3/10)*h
the volume of a cone is:
V = (1/3)*π*r^2*h
Rewriting:
V (t) = (1/3)*π*((3/10)*h(t))^2*h(t)
V (t) =(3π/100)*h(t)^3
Using implicit differentiation:
V'(t) = (9π/100)*h(t)^2*h'(t)
Clearing h'(t)
h'(t)=V'(t)/((9π/100)*h(t)^2)
the rate of change of volume is V'(t) = 2 cm3/s when h(t) = 5 cm.
substituting:
h'(t) = 8/(9π) cm/s
Answer:
the water level is rising at a rate of:
h'(t) = 8/(9π) cm/s
Answer:
The inequality solves to r > 5
The graph has an open hole at 5, with shading to the right
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Explanation:
6+9r is the same as 9r+6
We'll subtract 6 from both sides to undo the +6
9r+6 > 51
9r+6-6 > 51-6
9r > 45
Then we'll divide both sides by 9 to isolate r.
9r/9 > 45/9
r > 5
The entire time, the inequality sign stays the same.
The solution set involves anything larger than 5. So something like r = 7 would work while r = 2 does not.
Visually, we'll have an open hole at 5 on the number line. Shade to the right to indicate things larger than 5. The open hole tells the reader "do not include 5 as part of the solution set".
Answer:
111,865.74
Step-by-step explanation:
it is that answer because you want to multiply then divide
Answer:
32 containers
Step-by-step explanation:
First, there are 4 quarts in 1 gallon.
So they have 6 gallons of basil soup, and we need to convert it to quarts.
6gal * 4 = 24 quarts tomato basil soup
If they had 8 containers leftover we need to add then to the 24 quarts from this morning.
24quarts + 8 quarts = 32 quarts
If 1 container is 1 quart then there are 32 containers in all.