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drek231 [11]
3 years ago
7

URGENT!! NEED THIS IN TWO HOURS. DUMB ANSWERS WILL BE REPORTED ALTHOUGH I UNDERSTAND IF YOU MAKE A SIMPLE MISTAKE IN YOUR CALCUL

ATIONS. I NEED THE FULL ANSWER AND EXPLANATION BELOW
Write the general equation for the circle that passes through the points (1, 1), (1, 3), and (9, 2).



You must include the appropriate sign (+ or -) in your answer. Do not use spaces in your answer.

8x^2 + 8y^2 _____x _______y _______= 0
ANSWERS MUST BE A ROUND NUMBER
Mathematics
1 answer:
Andre45 [30]3 years ago
6 0

Yo sup??

The given points are (1,1),(1,3) and (9,2)

equation of circle is

8x²+8y²+ax+by=0

let us plug in (1,1) in the equation we get

8+8+a+b=0

a+b=-16

let us now plug in (1,3) in the equation

8+8*3²+a+3b=0

a+3b=-80

let us. now solve the two equation in terms of a and b

we get

2b=--64

b=-32

and

a=-16+32

=16

therefore the equation is

8x²+8y²+16x-32y=0

Hope this helps

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On the day of his 18th birthday harry decided to start saving money regularly
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We have been given that on the day of his 18th birthday Harry decided to start saving money regularly . Starting on that day, he could save 30.00 on the same date every month. We are asked to find the amount saved by the day before Harry's 60th birthday.

First of all, we will find years from 18 years to 60 years.

\text{Years}=60-18=42

We know that 1 year equals 12 months.

\text{42 years}=12\times 42\text{ Months}=504\text{ Months}

To find total amount saved, we will multiply 504 months by amount saved per month.

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3 0
3 years ago
How To Solve these? ​
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b. Same, when the denominator is the same, you can just minus the numerators. Which becomes, 25-12=13--> 13/27

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Please help me please and thank you
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Answer:

f(x)= x^2 - 2, the one in red.

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