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4 years ago

7a2-a2+16= combine like terms plz help

1 answer:

6 0

Since 7a2-a2 are like terms just subtract 1 from 7a2- this would make it 6a2+16.
if you want to narrow it down even further subtract 16 from the left side and add it to the other to make the equation 6a2=-16. divide by 6 and it will then become a2=-2.67. Then square root both sides and your answer would be a=1.63299316186

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abruzzese [7]

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3 years ago

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zavuch27 [327]

Answer:

Step-by-step explanation:

Basic Concept: Geometry

Formula:

Area of a polygon = $\frac{pa}{2}$

where p = perimeter and a = apothem

In this problem we are given the area and the apothem and we need to find the perimeter

To do so we want to plug what we are given into the formula and solve for the missing piece.

We are given the area (350) and the apothem (10)

So in the formula we would plug in 350 for the area and 10 for "a"

We would then have

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Now we use basic algebra to solve for p (perimeter)

step 1 multiply each side by 2

$350*2=700\\\frac{10p}{2}*2=10p$

now we have 700 = 10p

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3 years ago

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aniked [119]

Answer:

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Phantasy [73]

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