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2 years ago

Find the perimeter of the triangle in the picture

Mathematics

2 answers:

Len [333]2 years ago

5 0

Answer:

6x - 8

Step-by-step explanation:

perimeter of a triangle is equal to adding all of the sides together
so, x-2 + 2x +1 + 3x - 7
collect like terms, x + 2x + 3x - 2 + 1 - 7
6x - 8

topjm [15]2 years ago

3 0

Answer:

6x-8

Step-by-step explanation:

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Alex777 [14]

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First equation is -425

Second equation is 11.25

Step-by-step explanation:

First equation we can write as

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computing

When i=0 -> $5 \times (-2)^0 =5$

When i=1 -> $5 \times (-2)^1 = -10$

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When i=7 -> $5 \times (-2)^7 = --640$

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$5 + (-10) + ( 20) + ( -40) + (80) +( -160) + 320 + (-640) = -425$

For the second equation we'll have 9 terms, solving in a similar fashion

When i=1 -> $\frac{1}{4}1=0.25$

When i=2 -> $\frac{1}{4}2=0.50$

When i=3 -> $\frac{1}{4}3=0.75$

...

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