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Crank
2 years ago
5

Simplify and find the perimeter of the triangle

Mathematics
2 answers:
lbvjy [14]2 years ago
7 0

Answer:

2x - 19

Step-by-step explanation:

Perimeter = sum of sides

First let's simplify each side

We can simplify each side by using distributive property. Distributive property is where you multiply the number on the outside of the parenthesis by the numbers on the inside of the parenthesis.

2(x + 5)

Distribute by multiplying x and 5 by 2

2 * x = 2x and 2 * 5 = 10

2x + 10

1/2(4x + 8)

Distribute by multiplying 4x and 8 by 1/2

1/2 * 4x = 2x and 1/2 * 8 = 4

2x + 4

-3(2x + 11)

Distribute by multiplying 2x and 11 by -3

-3 * 2x = -6x

-3 * -33

-6x - 33

Finally add all the simplified expressions ( remember that they represent the side lengths of the triangle )

2x + 10 + 2x + 4 - 6x - 33

Combine like terms

2x + 2x - 6x = -2x

10 + 4 - 33 = -19

Perimeter: -2x - 19

Novay_Z [31]2 years ago
3 0

Answer:

Perimeter = - 2x - 19

Step-by-step explanation:

Perimeter \: of \: a \: triangle \\ = Sum \: of \: the \: length \: of \: all \: sides \\ = [2(x+5)]+[-3(2x+11)]+[ \frac{1}{2} (4x+8)] \\  = [(2 \times x)+(2 \times 5)]+[(-3 \times 2x)+( - 3 \times 11)]+[ (\frac{1}{2} \times 4x)  + ( \frac{1}{2}  \times 8)] \\  = (2x + 10) + ( - 6x - 33) + (2x + 4) \\  = 2x + 10  - 6x - 33 + 2x + 4 \\  = 2x - 6x + 2x + 10 - 33 + 4 \\  =  - 2x - 19

So, the perimeter is - 2x - 19.

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svp [43]

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Remember to distribute the negative sign.

6 0
3 years ago
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Tanzania [10]
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6 0
3 years ago
HURRYYYYYY !! A cube has an edge length of 9 centimeters.
CaHeK987 [17]
The perimiter is 4 times 1 side
currently, it is 9 times 4 or 36

increased by 3
I think y mean times 3
so 9*3=27
new perimiter is 27*4=108

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108-36=72

it is 72cm larger

it is the first answer
(it isn't cm² because that is for area and we are calculating perimiter)
5 0
2 years ago
A function is given. h(t) = −t + 6/5 ; t = −3, t = 1
artcher [175]

Answer:

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Plug in -3 for t.

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Plug in 1 for t.

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8 0
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