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Naddik [55]
4 years ago
8

X^2y^2-2x+8y+8=0 Identify the radius and the center.Then graph the circle

Mathematics
1 answer:
olga nikolaevna [1]4 years ago
4 0

Answer:

Centre: (1,-4)

Radius: 3

Step-by-step explanation:

h = -2/-2 = 1

k = 8/-2 = -4

1² + (-4)² - 8 = r²

r² = 9

r = 3

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Explain how System 1 becomes equivalent to System 2.
LenKa [72]

Answer:

In the procedure

Step-by-step explanation:

we have

<em>System 1</em>

Ax+By=C -----> equation A

Lx+My=N -----> equation B

<em>step 1</em>

Multiply equation B by -1 both sides

(-1)*(Lx+My=)N*(-1)

-Lx-My=-N ------> equation C

<em>step 2</em>

Adds equation A and equation C

Ax+By=C

-Lx-My=-N

----------------

Ax-Lx+By-My=C-N

(A-L)x+(B-M)y=C-N -----> equation D

step 3

An equivalent system (System 2) is formed with

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(A-L)x+(B-M)y=C-N -----> equation D

6 0
4 years ago
The probability that there will be a tornado in Tulsa, Oklahoma, each day of the summer depends on the humidity of the day in qu
Nikitich [7]

We solve this question building the probabilities outcomes.

According to this, it is found that the probability is: 0.023, given by option C.

The probabilities are:

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  • 100 - 40 = 60% = 0.6 probability of the air being dry.
  • If dry, 0.5% = 0.005 probability of a tornado.

What is the probability that there was a  tornado in Tulsa on July 1, 2019?

Two possible outcomes:

  • 0.05 of 0.4(humid)
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Thus:

p = 0.05\times0.4 + 0.005\times0.6 = 0.023

0.023 probability, and the correct answer is given by option C.

A similar problem is given at: brainly.com/question/16967884

8 0
3 years ago
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4 Write the decimal expansion for Choose the correct answer below. OA0.36 B. 0.3611 Oc. 0.63 OD. 0.6363.​
alexandr1967 [171]

Answer:

what? better explanation

8 0
4 years ago
Your friend, Shamus, suggests that you flip a coin to
Maslowich

Answer: Part 1: The number cube

            Part 2: the coin

Step-by-step explanation:

3 0
3 years ago
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