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k0ka [10]
4 years ago
14

Write an expression for the perimeter of the triangle shown below:

Mathematics
2 answers:
Afina-wow [57]4 years ago
7 0
4.1x +29

Hope this helps!! :)
sergiy2304 [10]4 years ago
3 0

Answer:

The answer is A.

Step-by-step explanation:

1. Combine like terms (2.3x + 2x= 4.3x - 0.2x = 4.1x)

2. add the 14 + 15 = 2

That gives you the equation 4.1x + 29

I also took the test so I know I it's right ;)

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1) Find mZLMN if mZLMT= 23°<br> and mZTMN = 144º.
Nesterboy [21]

Answer:

m<LMN = 167°

Step-by-step explanation:

Given:

m<LMT = 23°

m<TMN = 144°

Required:

m<LMN

SOLUTION:

m<LMN = m<LMT + m<TMN (angle addition postulate)

m<LMN = 23° + 144° (Substitution)

m<LMN = 167°

3 0
3 years ago
3x -4y = 5
kherson [118]

Step-by-step explanation:

  1. You would eliminate the terms with the y variables.
  2. You would use addition because you are trying to eliminate y to find the value of x.
5 0
3 years ago
1. Which of the following values of n will make the below equation true? n × (−2+5 ) = −8+20
Salsk061 [2.6K]

Answer:

1a 2a

Step-by-step explanation:

n × (−2+5 ) = −8+20

n × 3 = 12

n = 4

2 + (n+6) = −1+6

n + 8 = 5

n = -3

7 0
3 years ago
Evaluate the expression a divided by b for a=24 and b=3
emmainna [20.7K]
The answer is 8...............
4 0
3 years ago
Find all real solutions of the equation by completing the square. (Enter your answers as a comma-separated list.) x2 − 4x − 8 =
Nat2105 [25]

Answer:

After completing the square the expression is (x-2)^2 -12 =0 and real solution are x = 5.46 and x = -1.46

Step-by-step explanation:

We need to complete the square:

x^2 − 4x − 8 = 0

x^2 -2(x)(2)+(2)^2 -8 -4 =0

(x^2 -4x +4) - 12 = 0

(x-2)^2 -12 =0

Now, finding the value of x

(x-2)^2 -12 =0

(x-2)^2 = 12

taking square root on both sides

\sqrt{(x-2)^2}= \sqrt{12} \\(x-2) = \pm\sqrt{12} \\x = \pm\sqrt{12} +2\\x = \sqrt{12}+2 \,\,and\,\,x=-\sqrt{12}+2\\x= 3.46+2 \,\,and\,\,x=-3.46+2\\x =5.46\,\,and\,\,x=-1.46

So, After completing the square the expression is (x-2)^2 -12 =0 and real solution are x = 5.46 and x = -1.46

5 0
3 years ago
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