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Verdich [7]
3 years ago
15

Find the circumference and area of a circle with a diameter of 10 inches.

Mathematics
2 answers:
alekssr [168]3 years ago
6 0

\text{First, lets find the circumference of a circle}\\\\\text{The equation to find this is:}\,\,c=2\pi(r)\,\,or\,\,c=\pi(d)\\\\\text{Lets use the second equation, plug in and solve:}\\\\c=\pi(10)\\\\c=31.4159265359\\\\\text{Round to the nearest hundredths}\\\\\boxed{\text{Circumference = 31.42 in}}\\\\\text{Area:}\\\\\text{The equation to find the area is:}\,\,a=\pi(r)^2\\\\\text{Half of 10 is 5, so that's our radius}\\\\\text{Plug in and solve:}\\\\a=\pi(5)^2\\\\a=\pi(25)\\\\

a= 78.5398163397\\\\\text{Round to the nearest hundredths}\\\\\boxed{\text{Area: 78.54 in}^2}

fgiga [73]3 years ago
6 0

Answer:

Area: 78.54 (rounded 78.5) Circumference: 31.416 (rounded 31.42)

Step-by-step explanation

Area: A=3.14xr²          (r=radius)

to find the radius you divide the diameter by two or split it in half

Circumference: C=3.14xd           (d=diameter)

to find the diameter you multiply the radius by two or double it

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Julia has 3 ribbons that are 12 inches each. how many 4 inch sections can she cut from the ribbon.
Ber [7]
Total length of all ribbons = 12 * 3 = 36 inch

Then, number of ribbons = 36/4 = 9

In short, Your Answer would be: 9 sections

Hope this helps!
6 0
3 years ago
Select all of the terms that are "like."<br> xy2<br> 2xy<br> x2<br> -xy<br> 2x2y<br> xy
Alinara [238K]
Xy2 and 2xy are the only ones with common factors

7 0
3 years ago
Read 2 more answers
A CD has a 5% chance of being a smash hit and profiting $5.2 million, a 50% chance of being a modest success and profiting $0.9
Zinaida [17]
The probability of profiting $5.2 million is 5% = 0.05

The probability of profiting $0.9 million is 50% = 0.5

The probability of breaking even, meaning no profit gain, is 45% = 0.45

Expected profit values of the CD is given by
(0.05×5.2) + (0.5×0.9) + (0.45×0) = 0.26+0.45+0 = 0.71 million

3 0
3 years ago
Find the slope of the like y = 1/8x -1<br><br> anser choices <br> -8/1 <br> 1/8<br> 1<br> -1
otez555 [7]

Answer:

The equation is not linear. So the slope does not exist. Not linear.


Maybe you wrote the equation wrong? If so, let me know and I'll tell you what the answer is.


6 0
3 years ago
Combine the like terms to create an equivelant expression -3x-6(-1)
Elza [17]

Answer:

-3x+6

Step-by-step explanation:

-3x-6(-1)

First, multiplying two negatives equals a positive: (-)×(-)=(+). Then,

multiply the numbers -3×+6×1 = -3x+6. Then, you got the answer and the answer is -3x+6

3 0
3 years ago
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