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3 years ago

Write and simplify an expression for the perimeter of each figure

Mathematics

2 answers:

Nostrana [21]3 years ago

4 0

Answer:

20a - 2b - 1

Step-by-step explanation:

The perimeter is the sum of the 3 sides of the triangle, that is

perimeter = 9a - 4 + 7a + 3 + 4a - 2b ← collect like terms

= (9a + 7a + 4a) - 2b + (- 4 + 3)

= 20a - 2b - 1

kolbaska11 [484]3 years ago

3 0

The picture is a bit blurry but the perimeter of a shape is the lengths added.

(4a - 2b) + (7a + 3) + (9a - 4) = perimeter, I added the sides together

Combine like terms to get:

4a + 7a + 9a = 20a

-2b is left along becuase there are no other like terms

3 - 4 = -1

The perimeter is 20a - 2b - 1

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3 years ago

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mote1985 [20]

Answer:

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Step-by-step explanation:

The margin of error for the proportion interval is given by this:

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3 years ago

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--------> inequality

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Using a graph tool

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see the attached figure N

--------> inequality

This inequality represent Jeanne’s probable income earned this week

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see the attached figure N

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see the attached figure N

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------> see the attached figure N

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5 0

3 years ago

Read 2 more answers

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irga5000 [103]

Step-by-step explanation:

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2 years ago

Y = 3/2x + 5/4 −2x + 8y = −25

Andreyy89

Answer:

Step-by-step explanation:

When solving algebra, it is important the we follow the steps in correct order and check our answer at the end.

Step 1: Simplify by combining like terms

y = -x/2 + 5/4 + 8y = -25

Step 2: Substitute

y = -25

-25 = -x/2 + 5/4 + 8(-25)

-25 = -x/2 + 5/4 + -200

-25 = -x/2 - 198 3/4

Step 3: Answer

x = -347 1/2

Step 4: Check

y = 3/2x + 5/4 −2x + 8y = −25

-25 = 3/2(-347 1/2) + 5/4 −2(-347 1/2) + 8(-25)

-25 = -25✔️

Step 5: Verified Answer

x = -347 1/2

I'm always happy to help :)

3 0

3 years ago

Write and simplify an expression for the perimeter of each figure​

Write and simplify an expression for the perimeter of each figure