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Anvisha [2.4K]
3 years ago
6

*Brainliest* I need help with 4 problems like this...KHAN ACADEMY.

Mathematics
1 answer:
Sedaia [141]3 years ago
5 0

9514 1404 393

Answer:

  1. (x +1)² = 4
  2. (D)  x = -1 ±2

Step-by-step explanation:

Start by getting the x-terms on one side of the equal sign. We can do that by subtracting x from both sides.

  3 = x² +2x

Now, add the square of half the x-coefficient.

  3 +1 = x² +2x +1

  (x +1)² = 4 . . . . . . . . write as a square in the desired form

__

To solve, take the square root, and add the opposite of the left-side constant.

  x +1 = ±2

  x = -1 ±2 . . . . . . matches choice (D)

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URGENT PLEASE HELP<br> x/240 = 82/100 what is X?
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x/240 = 82/100

240 : 100 = 2.4

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3 years ago
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During the season, the Rangers played 25 games. They won 14 of the games.
34kurt

Answer:

See below

Step-by-step explanation:

Out of 25 games, they won 14

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To find the number of games lost

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1 year ago
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7 0
2 years ago
What is the length of the unknown leg
likoan [24]

Answer:

6 mm

Step-by-step explanation:

Use the Pythagorean Theorem to solve for the unknown leg

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Since we need to solve for a, we will manipulate the equation in terms of b and c → a=\sqrt{c^{2}-b^{2}  }

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6 0
3 years ago
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