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Anni [7]
3 years ago
13

A circle has the equation x2+ y2 = 9. What is the length of the radius?

Mathematics
2 answers:
andrew-mc [135]3 years ago
8 0

Answer:

<h2><u>3</u></h2>

Step-by-step explanation:

The standard form of the equation of a circle is

( x − a ) ^2 + ( y − b ) 2 = r ^2  

where (a,b) are the coords of the centre and r , the radius.

x ^2 + y ^2 = 9

is in this form  with a = b = 0 and r = 3

Zarrin [17]3 years ago
3 0

Answer:

The center is (0,0) and the radius is 3

Step-by-step explanation:

The equation of a circle is given by

(x-h)^2+(y-k)^2 = r^2

Where (h,k) is the center and r is the radius

(x-0)^2+(y-0)^2 = 3^2

The center is (0,0) and the radius is 3

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Write the phrase as an expression. Five more that six divided by a number r.
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Answer:

6/r + 5

Step-by-step explanation:

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3 years ago
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Determine whether the following value is a continuous random variable, discrete random variable, or not a random variable.
Elina [12.6K]

Answer:

a. The number of light bulbs that burn out in the next year in a room with 19 bulbs: is a discrete random variable.

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d. The number of home runs in a baseball game: is a discrete random variable.

e. The exact time it takes to evaluate 67 plus 29: is a continuous random variable.

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Step-by-step explanation:

A random variable often used in statistics and probability, is a variable that has its possible values as numerical outcomes of a random experiment or phenomenon. It is usually denoted by a capital letter, such as X.

In statistics and probability, random variables are either continuous or discrete.

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Examples are the number of light bulbs that burn out in the next year in a room with 19 bulbs, the number of chicken in a district etc.

4 0
3 years ago
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alexgriva [62]

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5 0
3 years ago
46 x 53 please show with work or something
lutik1710 [3]

Answer:

2,438

Step-by-step explanation:

    53

    46

______

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   212

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6 times 3 is 18. Put the 8 in the ones place and carry the 1 ~ 6 times 5 is 30. Add the carried 1 and you have 31. Put that next to the 8. ~ 4 times 3 is 12. put the 2 under the 1 in 318 and carry the 1. ~ 4 times 5 is 20. Add the carried 1 and you have 21. ~ Put that next to the 2. Now add 318 to 2120 and you have the answer of 12438.

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2 years ago
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shtirl [24]

Answer:

It is (2,4) Plz mark brainliest

Step-by-step explanation:

8 0
3 years ago
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