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BlackZzzverrR [31]
2 years ago
9

Solve by completing the square

Mathematics
1 answer:
xz_007 [3.2K]2 years ago
7 0

Step-by-step explanation:

{x}^{2}  + 2x - 2 = 0

Now Adding three on both sides we get

{x}^{2}  + 2x - 2 + 3 = 0 + 3

{x}^{2}  + 2x + 1 = 3

{(x + 1)}^{2}   = 3

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Help me Plz if you answer correctly I will choose u as brainliest
makvit [3.9K]

Answer:

See Below :)

Step-by-step explanation:

Area of triangle: 1/2(3)(4) = 6 square units

Area of rectangle: (3)(3) = 9 square units

Total area: 9 + 6 = 15 square units

8 0
3 years ago
Read 2 more answers
A survey was given asking whether people like dogs and/or cats. 153 said they like dogs 191 said they like cats 56 said they lik
lapo4ka [179]

Answer:

There were 362 people surveyed

Step-by-step explanation:

* <em>Lets explain how to solve the problem</em>

- A survey was given asking whether people like dogs and/or cats

# 153 said they like dogs

# 191 said they like cats

# 56 said they liked both cats and dogs

# 74 said they don't like cats or dogs

- We need to find how many people were surveyed

* <em>Lets find the number of who likes dogs only and the number who</em>

<em>  likes cats only </em>

- The number who likes dog only (cats only) is the difference between

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∴ The number who likes dogs only = 153 - 56 = 97

∴ The number who likes cats only = 191 - 56 = 135

- The total number of people were surveyed is the sum of the number

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  who doesn't like both

∵ The number who doesn't like dogs or cats is 74

∴ The total number = 97 + 135 + 56 + 74 = 362

* There were 362 people surveyed

7 0
3 years ago
20 pts awarded and brainliest chosen!!!!
g100num [7]

Answer:

D.  x <= -3 or   x >= 5

Step-by-step explanation:

3 | x-1 | > = 12

3(x - 1) >= 12

3x - 3 >= 12

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or

-3(x - 1) >=  12

-3x + 3 >= 12

-3x >= 9

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Answer

x <= -3 or   x >= 5

4 0
3 years ago
sea level =0 A submarine is 120ft below sea level it climbs 50 ft towards sea level where the submarine comparrf to sea level an
Katyanochek1 [597]

Answer:

<h2>70 ft</h2>

Step-by-step explanation:

120 below we can use a model to figure this out.

sea level is 0

the submarine <u>goes 120 down</u>, so its -120

it <u>goes up by 50</u>, so now its <em>70</em>

no other obstacles, 70 or A is your answer.

7 0
3 years ago
At Scott's Laundromat, the washing machines accept only quarters and
Y_Kistochka [10]

Answer:

8 quarters and 12 nickles

Step-by-step explanation:

8*25=2.00

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4 0
3 years ago
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