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UNO [17]
3 years ago
6

Find the diameter of a circle with an area of 676π square centimeters.

Mathematics
1 answer:
Alex_Xolod [135]3 years ago
8 0
A = \pi r^2 \\
676\pi = \pi r^2 \\
r = \sqrt{676} = 26

Therefore, the diameter is twice of that:
52 centimeters.
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The arca of a picture 25 7/5 square inches.If the width of the picture is 4 1/2 inches.
Stella [2.4K]

Answer:

6 in

Step-by-step explanation:

The <em>area</em> of a picture <em>is</em> 25 7/5 square inches.  If the width of the picture is 4 1/2 inches, what is the length?  <em>(A=(w)(l) </em>)

Assuming that your "25 7/5 square inches" is not a mistake, then this is equivalent to 26 2/5 square inches.

Converting 26 2/5 sq. in. to an improper fraction, we get 132/5 sq. in., which represents the area of the picture.  If the width is 4 1/2 inches, or 9/2 inches, then the length, l, is:

     132/5 in^2

l = ------------------

         9/2 in

To divide 132/5 in^2 by the fraction 9/2 in, invert 9/2 and multiply:

     135 in^2       2

l = -------------- * ------ = 270/9 in = 30/5 in = 6 in

          5              9

8 0
3 years ago
Question 1<br> Find the area of the shaded region.<br> 18 ft<br> 15 ft<br> 8 ft<br> A = ft?
qwelly [4]

Answer:

<h2>135 ft²</h2><h2 />

Step-by-step explanation:

see attached image

<u>shaded area = total area (1)  - unshaded triangular area (2)</u>

1.  area of a trapezoid = (a + b) * h/2

   where a = 8,  b = 18,  h = 15

   Area of trapezoid = (8 + 18) * 15/2 = 195 ft²

2.  Area of unshaded triangle = 1/2 (8) 15 = 60 ft²

shaded area =  195 - 60 = 135 ft²

4 0
3 years ago
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defon

Answer:

Step-by-step explanation:

If the question is to factorize

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5 0
2 years ago
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kicyunya [14]
(50/4) + (6/4) is the answer that you are looking for. All you do is break up the number that you are going to divide into easy-to-divide numbers.
4 0
2 years ago
How do i find the geometric between 8 and 18
bagirrra123 [75]
<span>-----
x/8 = 18/x
---
x^2 = 8*18</span>
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3 years ago
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