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chubhunter [2.5K]
3 years ago
5

What is the rate of change of the area of a circle with respect to the radius when the radius is r=3

Mathematics
1 answer:
gizmo_the_mogwai [7]3 years ago
7 0

Now the formula for the area of a circle is: πr². So we take 3 and just put it into the equation. π·3²=28.27. This is the area of the circle. Now the rate of change I think would just be the difference between the radius and the area of the circle so 28.27-3=25.27.

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Find the surface area of the prism or pyramid. Round to the nearest hundredth if necessary.
kumpel [21]

Answer: 166

Step-by-step explanation:

SA=2lw+2lh+2wh

l=4 w=7 h=5

SA=2(4)(7)+2(4)(5)+2(7)(5)

SA=2(28)+2(20)+2(35)

SA=56+40+70

SA=166

4 0
3 years ago
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Solve: This is for Grace Rosalia ...no one else:<br>4x + 14 = 2x + 18​
ddd [48]

Answer:

x = 2

Step-by-step explanation:

Step 1: Subtract 2x from both sides.

4x+14−2x=2x+18−2x

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Step 2: Subtract 14 from both sides.

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Step 3: Divide both sides by 2.

2x

2

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Hope this helps!

6 0
2 years ago
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Anastasy [175]

Answer:

15,000 people

Step-by-step explanation:

This is the question of ratio, it is the quantitative relationship of two number.

In this survey a ratio of 66 people out of 110 is defined as living in apartment, based on this ratio we can estimate the total numbers of people living in apartments.

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Town people living in apartment = 25,000 x 0.6 = 15,000 peoples

8 0
3 years ago
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Answer:

minutes at daytime rate: 3.00

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split up the hours so you have the 5 cent charge per minute for 1 hour and you have the 3 cents a minute for an hour and a half after 8.

multiply 5 cents a minute by 60 to get the amount of money for the first hour($3.00),

next multiply 3cents a minute by an hour and a half (90 minutes) to get $2.70

next add the money together to get $5.70 and multiply that by 1.5 to get $8.55

8 0
3 years ago
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schepotkina [342]

Answer:

2,5,8,11,13,18,22,27,32,48

5 0
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