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ikadub [295]
3 years ago
5

ANSWER PLEASE simplify 2n(n2+2n+3)-3(2n+7) and (-4n2-3n-8)+2(n+9)

Mathematics
1 answer:
dmitriy555 [2]3 years ago
7 0

Step-by-step explanation:

> 2n³+4²+6n-6n-21

2n³+4n²-21

> -4n²-3n-8+2n+18

-4n²-3n-8+2n+18

-4n²-n-8+18

-4n²-n+10

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Find the value of x in the figure below. <br> 26<br> 56<br> Х
SashulF [63]
The answer is 30

Explanation:

So all of the angles in a triangle add up to 180 degrees and so if you split the triangle into separate triangles then you can add up the angles that are known and subtract from 180 to get the size of the missing angle e.g 90 + 56 = 146, 180 -146 = 34 for the other triangle 90 + 26 = 116, 180 - 116 = 64 and so 64 - 34 = 30
4 0
3 years ago
Help me solve this problem step by step because I’m having a hard time
jarptica [38.1K]

Answer:

x=3, y=10

Step-by-step explanation:

in triangle KLN all the angles are equal making it an equilateral trianlge. GIven one side being 6, we know all the sides are 6 including the side with the expression y-4.

this means

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Using the converse of the base angles theorem(meaning we know the base angles are congruent so the two sides are conguent), we know that

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4 0
3 years ago
Maths<br><br> Pls help me!!!!
Leokris [45]

9514 1404 393

Answer:

  P(0, 4), Q(-3, 0)

Step-by-step explanation:

To find the y-coordinate of P, replace x with 0 and solve for y:

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To find the x-coordinate of Q, replace y with 0 and solve for x:

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Then the intercepts are P(0, 4) and Q(-3, 0). The line is drawn through those points for the indicated values of x.

8 0
3 years ago
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devlian [24]

Answer:

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Step-by-step explanation:


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4 years ago
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wariber [46]

Answer:

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I'm not really sure if this is correct but from my textbook it says that the answer cannot have a math problem in it (E.g x = 1 + 2.3).

I am sorry if this is incorrect

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8 0
2 years ago
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