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kicyunya [14]
3 years ago
11

Solve x^(2)+4x=4 for x by completing the square.

Mathematics
1 answer:
Mama L [17]3 years ago
8 0

Answer:

x = 2 sqrt(2) - 2 or x = -2 - 2 sqrt(2)

Step-by-step explanation:

Solve for x:

x^2 + 4 x = 4

Add 4 to both sides:

x^2 + 4 x + 4 = 8

Write the left hand side as a square:

(x + 2)^2 = 8

Take the square root of both sides:

x + 2 = 2 sqrt(2) or x + 2 = -2 sqrt(2)

Subtract 2 from both sides:

x = 2 sqrt(2) - 2 or x + 2 = -2 sqrt(2)

Subtract 2 from both sides:

Answer: x = 2 sqrt(2) - 2 or x = -2 - 2 sqrt(2)

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zhannawk [14.2K]
1/4  3/5 3/4 7/5 7/3 is the correct order well at least i think it is but i hope it helps

5 0
3 years ago
When a factory operates from 6 AM to 6 PM, its total fuel consumption varies according to the formula f(t)=0.9t^3−0.6t^0.5+10, w
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7 0
3 years ago
Compute: (3.5· 2/7 − 2/3 )÷16
velikii [3]

Answer:

≅ 0.02083333

Step-by-step explanation:

(3.5 * 2/7 - 2/3)÷16 = 1

48

≅ 0.02083333

1: Conversion a decimal number to a fraction: 3.5

2: Multiple: 3.5 * 2

7

= 7 · 2

2 · 7

= 14

14

= 1 · 14

1 · 14

= 1

3: Subtract:

4: Divide

<em><u>Hope this helps.</u></em>

7 0
3 years ago
Which answer !!!!!!!!!
ycow [4]
The first answer, answer A. It's easy.

3 0
3 years ago
Please help me please
irina1246 [14]

Answer:

The answer is Parson's Market.

Step-by-step explanation:

First you want to find out how much one pound costs.

For Parson's you take 11.34 and divide it by 6.

11.34 / 6 = 1.89

Then you take how many pounds you are trying to get (7) and multiply it by the price per pound (1.89)

7  * 1.89 = 13.23

3 0
3 years ago
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