4 years ago

Need your help please

Mathematics

1 answer:

erastovalidia [21]4 years ago

7 0

I hope you can read cursive. Hope this helps!

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olga55 [171]

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3 years ago

Given area of a rectangle: 7x^2+57x+8 <br> Find Perimeter:

Sever21 [200]

Answer:

Perimeter of the rectangle is 16x+18 units.

Step-by-step explanation:

The area of rectangle is

$7x^2+57x+8$

First we have to find the factor form of above expression.

Splitting the middle term, we get

$7x^2+56x+x+8$

$7x(x+8)+1(x+8)$

$(x+8)(7x+1)$

Area of a rectangle is the product of its dimensions. It means dimensions of the rectangle are (x+8) and (7x+1).

Perimeter of a rectangle is

$Perimeter=2(l+b)$

$Perimeter=2[(x+8)+(7x+1)]$

$Perimeter=2[8x+9]$

$Perimeter=16x+18$

Therefore, the perimeter of the rectangle is 16x+18 units.

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4 years ago

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ratelena [41]

Answer:

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Step-by-step explanation:

20 miles jogs at 1 hour, so for 2 miles,

2/20

= 1/10 hours

= 1/10×60

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3 years ago

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stealth61 [152]

You just subtract 7 from both sides, this way you isolate f and its calculation is very easy

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Answer:

Step-by-step explanation:

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