1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Anvisha [2.4K]
3 years ago
5

Complete the square please.

Mathematics
1 answer:
Aleks04 [339]3 years ago
3 0

Answer:

(x-3)^2 + (y+2)^2 = 9^2

Step-by-step explanation:

x^2 -6x+y^2+4y-68 = 0

Complete the square

x^2 -6x+y^2+4y-68+68 = 0+68

x^2 -6x+y^2+4y = 68

Find the term to add for x

-6 /2 = -3  -3^2 = 9

Find the term to add for y

4/2 =2  2^2 = 4

Add 9 and 4

x^2 -6x+9+y^2+4y+4 = 68+9+4

(x-3)^2 + (y+2)^2 = 81

(x-3)^2 + (y+2)^2 = 9^2

The standard form is

(x-h)^2 + (y-k)^2 = r^2 where (h,k) is the center and r is the radius

You might be interested in
Which statement is true about the value of 1-5/?
N76 [4]

Answer:

O It is less than 5.

Step-by-Step

OK so, first u check if it has a negative. It does, so its at the left of 0. SO you know its less than.

7 0
2 years ago
Which expression represents the area of the rectangle <br>(2x+7)(4x+5)?
zhenek [66]

So we'll do FOIL (first, outer, inner, last)

The equation is (4x+5)(2x+7)

First, 4x·2x=8x²

Outer, 4x·7=28x

Inner, 5·2x=10x

Last, 5·7=35

Add like terms and you get:

8x²+38x+35

3 0
3 years ago
Help please!!! Q: A manufacturing company finds that 0.0019 of the light bulbs it makes are defective. Write this as a percent.
gtnhenbr [62]
The answer is 0.19%.

(:
4 0
3 years ago
Read 2 more answers
I need help with this plz
Ksju [112]

Answer:

The correct answer is D. 10.

Step-by-step explanation:

If Brandy earns 2 stars for every goal, and she scored 8 goals, then we need to multiply 8 by 2.

8 x 2 = 16

She looses 1/2 a star for every miss, and she missed the goal 12 times. Therefore, we need to multiply 1/2 by 12.

12 x 1/2 = 6

Therefore, Brandy lost 6 stars.

Now, we need to subtract the amount of stars Brandy earned by the amount that she lost.

16 - 6 = 10

Therefore, the correct answer is D. 10.

Hope this helps! :D

5 0
3 years ago
Find the equation of the line that passes through points a and b. <br> Please help.
Fiesta28 [93]

Answer:

y=2x-1

Step-by-step explanation:

Gradient : (7-3) / (4-2) = 2

y=2x+c

substitute one of the points

3=2*2+c

c=-1

y=2x-1

5 0
3 years ago
Other questions:
  • (algebra) <br> Solve for x. <br> Fx-gx=h
    11·1 answer
  • How are operations with variables like operations with real numbers?
    8·1 answer
  • If the Internet consisted of four computers, there would be six possible connections. If it consisted of five computers, there w
    7·1 answer
  • Find the complete factored form of the<br> polynomial:<br> -7m^6 n^5 + 8n^3
    15·1 answer
  • Y= -2x +9 what does x equal ?
    15·1 answer
  • Which expression is equivalent to 15 (n+3/n) ?<br> £ <br> N=10
    11·1 answer
  • Between 2016 and 2018 how many kg of boulders were excavated?​
    13·1 answer
  • Write your answer in simplest radical form​
    13·1 answer
  • Combine like terms: c + c + c <br> what do you get?<br> A- 3c<br> B- c3
    15·2 answers
  • Please help me!!!!!<br> What are the answers
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!