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sattari [20]
3 years ago
7

What is the answer and how do you do this problem?

Mathematics
1 answer:
nadezda [96]3 years ago
7 0

We want to recast the equation into the standard form equation for a circle centered at (h, k) with radius r. That equation is

... (x -h)² + (y -k)² = r²

Start by completing the square for both x-terms and y-terms.

... x² - 4x + y² + 4y = k

To do that, add the squares of half the coefficients of the x- and y-terms.

... x² - 4x + (-2)² + y² + 4y + 2² = k + (-2)² + 2²

... (x -2)² + (y +2)² = k + 8 = r² . . . . . this is now equal to the square of the radius, so we have

... k + 8 = 6² = 36

Subtracting 8 gives

... k = 28 . . . . . . . matches selection D)

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Can someone please help me?
Allisa [31]

Answer: you got this

Step-by-step explanation: YOU WILL NEVER SUCCEED IF YOU DON’T TRY

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7 0
2 years ago
Divide. Write the quotient in lowest terms. 4\dfrac{2}{3} \div 7 =4 3 2 ​ ÷7=4, start fraction, 2, divided by, 3, end fraction,
velikii [3]

Answer:

\dfrac{2}{3}

Step-by-step explanation:

Given the quotient: 4\dfrac{2}{3} \div 7

Step 1: Write 4\dfrac{2}{3} in improper fraction.

4\dfrac{2}{3}=\dfrac{14}{3}

Therefore:

4\dfrac{2}{3} \div 7=\dfrac{14}{3} \div 7

<u>Step 2:</u> Change the division sign to multiplication by taking the reciprocal of 7

\dfrac{14}{3} \div 7 =\dfrac{14}{3} X\dfrac{1}{7} \\$Simplify\\\\=\dfrac{2}{3}

3 0
3 years ago
Is the equation y=85x-600 linear? Explain why or why not.
Pani-rosa [81]
Yes the equation is linear because the linear equation is y=mx+b and y=85x-600 is linear.
5 0
3 years ago
Read 2 more answers
Kevin and Randy Muise have a jar containing 56 ​coins, all of which are either quarters or nickels. The total value of the coins
fgiga [73]

Answer:

the answer would be 39 nickels and 17 quarters

Step-by-step explanation:

i did guess and check so i will just give the answer and the work for it

4.25/.25=17 quarters

56-17=39

39*.05=1.95

1.95+4.25=6.20

7 0
3 years ago
Read 2 more answers
80% of people those who purchase pet insurance are women. If the owners of 9 pet insurance are randomly selected, then find the
Luba_88 [7]

The probability that exactly 6 out of them are women is 0.176

According to the statement

Number of selected pet owner randomly is 9. So, Here in this case n=9.(number of randomly selected owners).

Number for which have to find the probability is 6. So, Here in this case x=6.

Find the probability by a use of BINOMIAL THEOREM

So, n!/((n-x)!*x!) = 9!/((9-6)!*6!) = 84

Now, find out the probability of success p and probability of failure (1-p)=q.

From here we get p = 0.8 and q= 0.2

Now, use  p^x = (0.8)^6 = 0.2621

Then use q^(n-x) = (0.2)^(9-6) = 0.008

Now, Multiply the results obtained to get the probability is

84*0.2621*0.008 = 0.176

So, The probability that exactly 6 out of them are women is 0.176

Learn more about  probability here brainly.com/question/25870256

#SPJ4

6 0
2 years ago
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