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vlabodo [156]
3 years ago
14

A rectangle has a length of 2x + 1 and a width

Mathematics
1 answer:
Damm [24]3 years ago
3 0

Answer:

H

Step-by-step explanation:

The rectangle has a length of (2<em>x</em> + 1) and a width of (5<em>x</em> - 4).

And we want to select the expression that represents the rectangle's area.

Recall that a rectangle's area is simply its length multiplied by its width. Thus:

A=(2x+1)(5x-4)

Expand by distributing:

A=(2x+1)(5x)+(2x+1)(-4)

Distribute:

A=(10x^2+5x)+(-8x-4)

Simplify:

A=10x^2-3x-4

Hence, our answer is H.

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Solution:

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To find the arc length of the quarter circle:

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