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pogonyaev
2 years ago
11

Help me I don't understand the problem

Mathematics
1 answer:
Lelechka [254]2 years ago
8 0
Janajahbdjsjusis. Hqhavavgqgwyywgqhha esta burn jahhabavyhsnskalaisio
You might be interested in
A spherical helium balloon has a diameter of 30 cm. How much helium is needed to fill the balloon, in cubic centimeters? Round y
GaryK [48]
From V= 4/3*pi*r^3 
<span>dV/dt = 4pi(r^2)dr/dt </span>
<span>so when dV/dt=30 and r = 19 </span>
<span>30 = 4pi(361)dr/dt </span>
<span>dr/dt = 30/[4pi(361)] </span>

<span>now in </span>
<span>A = 4pir^2 </span>
<span>dA/dt = 8pi(r)dr/dt </span>
<span>= 8pi(19)*30/[4pi(361)] </span>
<span>= you finish it.</span>
<span>HOPE THIS HELPS.
</span>
3 0
3 years ago
A region with a 5-mile radius has a population density of about 3100 people per square mile. Find the number of people who live
Gwar [14]

Answer:

243,000 people

Step-by-step explanation:

First, what we need to do is to calculate the area of the region using the 5-mile radius

Mathematically, we can calculate this as the area of a circle

Area = pi * r^2

Our r here is 5 miles

Area = pi * 5^2 = pi * 25 = 78.54 square miles

Now to get the population, we know that per square mile we have 3,100.

Hence per 78.54 square mile, we have 78.54 * 3100 = 243,273 people

To the nearest thousand, 243,000

4 0
3 years ago
.
faust18 [17]
58 degrees. Just round up from multiplying .16 to 360
4 0
3 years ago
PROPIEDADES DE LA SUMA Y PRUBA DE LA RESTA.
olga2289 [7]
Answer is c la diferencia Ed la Miya’s question el minuendo
3 0
3 years ago
19. Write an equation to represent the relationship
balandron [24]

Answer:

  y = x +3

Step-by-step explanation:

When you examine the table, you see that each y-value is 3 more than the corresponding x-value. This is represented in the equation ...

  y = x +3

8 0
2 years ago
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