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Amanda [17]
3 years ago
7

a cylindrical paint roller has a length of 10 inches and a diameter of 1 1/2 inches. As the roller is dragged along a wall, if i

t completes 4 revolutions, what is the approximate area the roller will cover with paint?
Mathematics
1 answer:
sergij07 [2.7K]3 years ago
3 0
I hope this helps you radius= 1 1/2=1.2+1/2=3/2 lateral area= 2pi.r.height area= 2.pi.3/2.10 area =30pi 4.30pi=120pi
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Cries In didn’t pay attention in class in my lower grades
seraphim [82]
Answer:

a. 32

b. 48

Step-by-step explanation:

Forty percent of the 80 birds were robins.

a. How many of the birds were robins?

b. How many of the birds were not robins?
___________________
Forty percent of the 80 birds that were robins = 40%/100%

To find how many of the birds were robins, use part/whole = part/whole

40%/100% = ?/80

This will tell us how many exact robins were there

To solve, multiply 80 by 40 and then divide all by 100

80 x 40 ÷ 100 = 32

so 32 of the birds were robins

now for b since 32 of the birds were robins out of 80 birds, subtract 32 from 80.

80 - 32 = 48
4 0
3 years ago
Select all the equations that are true, and you can only pick 3...
lesya [120]

Answer:

I only see one true equation.  Please check the statements.

Step-by-step explanation:

О 0+451=0← for A      <u><em>FALSE</em></u>

О 130+210=210+130← for B        <u><em>FALSE</em></u>        

О (123+57)+180=180+(87+180)←for C    <u><em>FALSE</em></u>

√ for= 497+0=497←for D            <u><em>TRUE</em></u>

5 0
1 year ago
How do you put 12 over 60 in a simplest form
stich3 [128]
That would be 1/5 in simplest form you can divide both numbers by 12 and when you do you get 1/5. Hope this helps!
8 0
3 years ago
Simplify (4s5t−7−2s−2t4)3. Write your answer using only positive exponents. Evaluate any numerical powers.
schepotkina [342]

Answer:

−21

Step-by-step explanation:

=12s5t−6t4−6s−21

5 0
3 years ago
2. Which graph represents the solution to the given system? (1 point)
matrenka [14]

Answer:

1000000000000000million

4 0
2 years ago
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