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neonofarm [45]
3 years ago
14

Can someone find the total area of this poster

Mathematics
1 answer:
xeze [42]3 years ago
7 0

Answer: 1,360

Step-by-step explanation:

20 * 20 = 400

20 * 12 = 240

240 * 4 = 960

960 + 400 = 1,360

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What are the solution(s) of x squared minus 4 = 0? x = negative 4 or x = 4 x = negative 2 or x = 2 x = 2 x = 4
frosja888 [35]

Answer:

Step-by-step explanation:

The expression is

x^2 - 4

This is a quadratic expression.

To find the solution, we will equate the the expression to zero. It becomes

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x^2 - 4 + 4 = 0 + 4

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Take square root of the right hand side of the equation and left hand side of the equation. It becomes

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-\frac{1}{3}+\left|-\frac{7}{4}\right|

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3 years ago
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3. Triangle ABC has angle measures as shown.
dedylja [7]

The 3 inside angles of a triangle need to equal 180 degrees.

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replace x with 21:

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