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Margaret [11]
3 years ago
13

Write the equation in general form of the circle with the given properties.

Mathematics
2 answers:
ser-zykov [4K]3 years ago
7 0
This question has been answered before by someone else.
If the answer provided did not suit your teacher/computer, it might be that the standard form is required, which is the first line of the previous response:

Equation of circle centred at (a,b) with radius r is:
(x-a)^2+(y-b)^2=r^2

with (a,b)=(8,7), i.e. a=8, b=7,  and r=9, the equation of the circle becomes

(x-8)^2+(y-7)^2=9^2
OR
<span>(x-8)^2+(y-7)^2=81</span>
schepotkina [342]3 years ago
5 0
 The equation of a circle with center (8,7) and radius 9 is as follows:

(x-8)^2+(y-7)^2=9^2

Multiplying this equation out will give us the general form of the equation of the circle.

(x-8)^2+(y-7)^2=9^2 \\ (x-8)(x-8)+(y-7)(y-7)=81 \\ (x^2-16x+64) + (y^2 -14x + 49) = 81 \\ x^2-16x+64 + y^2 -14x + 49 = 81

Simplify to get your answer:

x^2+y^2 -16x-14y + (49+64) = 81 \\&#10;x^2+y^2 -16x-14y + 113 = 81
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2(h-8)-h=h-16 what is the solution
BartSMP [9]
STEP-BY-STEP SOLUTION:

To solve this equation, first make ( h ) the subject and then simplify as much as possible as displayed below:

2 ( h - 8 ) - h = h - 16

2h - 16 - h = h - 16

2h - h - h = - 16 + 15

h = 0

Please mark as brainliest if you found this helpful! :)
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4 0
3 years ago
Kwasi has earned $60 in babysitting money. He spends 40% of this money buying drinks for himself and two friends at Starbucks. H
mart [117]

Answer: Yes

Step-by-step explanation:

Given

Kwasi earned \$60 in babysitting

He spends 40% of the money in buying drinks

Money spend is given by

\Rightarrow 60\times 40\%\\\Rightarrow \$24\\\text{Remaining amount is}\\\Rightarrow 60-24=\$36

So, Kwasi has enough money left to buy a skateboard.

3 0
2 years ago
If Joseph buys a T.V. At 35% off and it’s original costs $599.99 how much did he pay for the tv?
Monica [59]

Answer: He paid \$389.9935 for the T.V.

Step-by-step explanation:

We need to analize the information provided:

- The original cost of the T.V. was $599.99

- Joseph buys it at 35% off the original cost.

Let be "x" the amount Joseph paid for the T.V.

We can calculate "x" with the following expression:

x=\$599.99-(\$599.99)(0.35)\\\\x=\$389.9935

Therefore, he paid \$389.9935 for the T.V.

7 0
3 years ago
For each hour he babysits, Anderson earns $1 more than half of Carey’s hourly rate. Anderson earns $6 per hour. Which equation c
erastovalidia [21]
Carey earns c hourly
Anderson earns $6 hourly which is also 1+ c/2
So, 6=1+c/2
      12=2+c
c=$10
<span>Carey earns $10 hourly</span>
6 0
3 years ago
Read 2 more answers
Which point lies on the line defined by 2x – y = 7?
Eduardwww [97]
So lets just assume that y = 1 since 2x is most likely an even number.
Then we can say that 2x = 8
8 divided by 2 is 4
so a point on this line could be (4,1)
Hope this helped
4 0
3 years ago
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