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mr_godi [17]
3 years ago
12

How do i find the circumference of a circle

Mathematics
2 answers:
Molodets [167]3 years ago
8 0
You have to do 3.14 times the diameter of the circle.
kirill115 [55]3 years ago
5 0

Answer:

To find the circumference of a circle, you can either use the expression pi x diameter or 2 x pi x r. Both will yield the same result.

Step-by-step explanation:

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Polygon Q is a scaled copy of polygon P using a scale factor of 1/2. Polygon Q's area is what fraction of Polygon P's area.
DaniilM [7]

Answer: Polygon Q's area is 1/4 of Polygon P's area

======================================================

Explanation:

Imagine we had a square with side length 8. The area of this square is 8*8 = 64.

Now let's reduce each side of the square by the scale factor 1/2. So each new side is 8*(1/2) = 4. The area of this smaller square is 4*4 = 16.

Comparing the new area (16) to the old one (64), we see that the new area is 16/64 = 1/4 of the old area.

In other words,

new smaller area = (1/4)*(old larger area)

So this is one example to see why (1/2)*(1/2) = 1/4 is the area scale factor based on the linear scale factor of 1/2. In short, (1/2)^2 = 1/4. Whatever the original scale factor is, square it and you'll get the area scale factor.

4 0
3 years ago
Can someone explain how to do this page I wasn't there when my teacher explained it
kodGreya [7K]

Answer:

You have to solve for the letter

Step-by-step explanation:

For example, Q5 is 40 - 5n = -2.

  • You subtract 40 from -2 and get -42 then you have 5n = -42.
  • You divide 5 to -42 so \frac{-42}{5}.
  • The answer is -8.4.

*Use a calculator if necessary.*

~Hope this is helps (.^.)~

5 0
3 years ago
What are the factors of the quadratic function graphed below. Please show work , please help
dlinn [17]

Answer:

x and (x - 6)

Step-by-step explanation:

y = a(x - h)² + k

h = 3    k = -2

y = a (x - 3)² -2

For point (0 , 0) on the function

0 = a (0 - 3)² -2

0 = 9a - 2

a = 2/9

a (x - 3)² -2 = 2/9 (x² - 6x + 9) - 2 = 2/9 * x * (x - 6) + 2 - 2 = 2/9 * x * (x-6)

5 0
3 years ago
HELP ASAP PLEASE!!
Thepotemich [5.8K]

Answer:

From the origin, move 0.5 unit to the left along the x-axis and 1 unit vertically down, and place the point.

Step-by-step explanation:

hope this helps! :}

4 0
2 years ago
Read 2 more answers
Can you help please?!
IrinaK [193]
For the first one, its 86 square in, and the second one is 45 square cm.
6 0
3 years ago
Read 2 more answers
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