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zzz [600]
3 years ago
12

Evaluate. y2 + 2y + 5 for y = -5​

Mathematics
1 answer:
OleMash [197]3 years ago
3 0

Answer:

20

Step-by-step explanation:

Evaluate for y= −5

(−5)2+(2)(−5)+5

(−5)2+(2)(−5)+5

=20

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Just help me out with this polynomial i need help <br> { -m^{2} + 6} + { -4m^{2} + 7m + 2} =
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Answer:

-5m^2+7m+8

Step-by-step explanation:

Here, we add up two polynomials shown.

The polynomials are:

[-m^2 + 6]+[-4m^2 +7m + 2]

In order to add up the 2 polynomials shown, we have to see the "like terms" and add them up.

We add up the "m^2" terms and the constant (number) terms. There is one term with "m", so we leave it like that. Let's add up. Shown below:\

[-m^2 + 6]+[-4m^2 +7m + 2]\\=-m^2-4m^2+6+2+7m\\=-5m^2+7m+8

This is the sum of the 2 polynomials shown:  -5m^2+7m+8

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<h3>Creating a Right Triangle with Three Squares</h3>

The right angle of a right triangle is formed by the two small legs of the right triangle that are perpendicular to each other.

Just like in the diagram attached below, the two squares with the smallest sides will form the right angle in the right triangle.

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Learn more about right triangle on:

brainly.com/question/2437195

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