2 years ago

Yo can I get some help ?

1 answer:

5 0

I am probably wrong but 45 degrees? Most if not all triangles equal 180. Since we already have 90 degrees we can subtract 90 from 180 and get 90. Both of the angles on the bottom left and right look about the same size so we can divide 90 by 2 and get 45.

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andrew11 [14]

Answer:

10x + 12 and 6x² + 11x - 7

Step-by-step explanation:

The perimeter (P) of a rectangle is calculated as

P = 2l + 2w ( l is length and w is width )

= 2(2x - 1) + 2(3x + 7) ← distribute parenthesis

= 4x - 2 + 6x + 14 ← collect like terms

= 10x + 12

--------------------------------------------------

The area (A) of a rectangle is calculated as

A = lw

= (2x - 1)(3x + 7) ← expand using FOIL

= 6x² + 14x - 3x - 7 ← collect like terms

= 6x² + 11x - 7

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Step-by-step explanation:

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2 years ago

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Svetllana [295]

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3 years ago

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Step-by-step explanation:

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Steven did 3/10 of 30= 9 out of 30

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1 year ago