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stira [4]
3 years ago
15

State the radius of this circle: X^2 +Y^2=121

Mathematics
1 answer:
Snowcat [4.5K]3 years ago
8 0

Answer:

radius = 11

Step-by-step explanation:

The equation of a circle centred at the origin is

x² + y² = r² ( where r is the radius )

x² + y² = 121 ← is the equation of a circle centred at the origin

with r² = 121 , then

r = \sqrt{121} = 11

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so, in 4/9 • 4/5,
4•4 = 16, and
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so, 4/9 • 4/5 = 16/45.
now, we’ll look for the Least Common Factor

factors are numbers that you can multiply together to = another number.
the LEAST common Factor is the # that is smallest that you can divide both numbers by, in an equation and get a whole number.

for instance, 3•3 and 1•9 are the only ways to get 9, so, the factors are 1, 3, 9

let’s look for the LCF in 16 and 45. -
if we find the ways to get 16, we have:
1•16, 2•8, and 4•4
so, the factors are 1, 2, 4, 8, and 16.
this is called FACTORING :)

the ways to get 45 are...
1•45, 3•15, and 5•9, so the FACTORS are
1, 3, 5, 9, 15, & 45.
- compare the factors of 16 & 45,
none of them are the same besides 1, and we know that dividing these numbers by 1 will not do anything.

because of this, we can not reduce 16/45, so the reduced answer to 4/9 • 4/5 = 16/45
4 0
4 years ago
Select the undefined term that best defines the arrow pictured<br><br> point<br> line<br> plane
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Andru [333]

Answer:

Step-by-step explanation:

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GREYUIT [131]

The level of each growth factor is an illustration of a combination

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<h3>How to determine the number of combinations?</h3>

From the complete question (see attachment), we have the number of levels in each growth factor is:

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n = 3 * 5 * 2 * 3

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Hence, there are 90 ways of combining one level from each growth factor.

Read more about combination at:

brainly.com/question/11732255

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