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Wittaler [7]
3 years ago
5

Simplify:

Mathematics
2 answers:
Irina-Kira [14]3 years ago
7 0

Step-by-step explanation:

Let's combine the like terms first, which are x^2 & -3x^2, and 3x & -4x.

x^2 -3x^2 is -2x^2. 3x -4x is -x.

The final, simplified expression would be -2x^2 -x.

harina [27]3 years ago
6 0

Answer:

-2x²-x

Step-by-step explanation:

x² + 3x - 3x² - 4x

You need to simplify

x² -3x²=-2x²

and

3x - 4x =  - x

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6.0

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∆ABC rotates around point D to create ∆A'B'C'. However, only is shown. Based on the position of , what are the coordinates of A'
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How do you simplify 5 (3t) - 7 (2t)
Vlada [557]

Answer:

3t-2

Step-by-step explanation:

  1. Multiply the terms 3t and 2t. You should get 5t.
  2. Subtract 7 from 5; you should get -2.
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7 0
3 years ago
Solve the following quadratic equation. (x+12)^2=1 A. x = 11 and x = 13 B. x = -11 and x = -13 C. x = -11 and x = 13 D. x = 11 a
sveticcg [70]

Answer:

b

Step-by-step explanation:

(x+12)^2=1

or

(x+12)= +or - 1

when

x+12=1

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when

x+12=-1

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then

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2 years ago
Josue leans a 26-foot ladder against a wall so that it forms an
postnew [5]

Answer:

25.61 feet

Step-by-step explanation:

First, we can draw a picture (see attached picture). With the wall representing the rightmost line, and the ground representing the bottom line, the ladder (the hypotenuse) forms a 80 degree angle with the ground and the wall and ground form a 90 degree angle.

Without solving for other angles, we know one angle and the hypotenuse, and want to find the opposite side of the angle.

One formula that encompasses this is sin(x) = opposite/hypotenuse, with x being 80 degrees and the hypotenuse being 26 feet. We thus have

sin(80°) = opposite / 26 feet

multiply both sides by 26 feet

sin(80°) * 26 feet = opposite

= 25.61 feet as the height of the wall the ladder reaches

6 0
2 years ago
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