2 years ago

What is the approximate area of the triangle? A)12.5 B)18 C)21.5 D)31

Mathematics

1 answer:

dalvyx [7]2 years ago

6 0

Answer:

21.5

Step-by-step explanation:

Counting the full squares: 16

Counting the squares that are more than 1/2: 6

The best estimate would be 21.5

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Step-by-step explanation:

We want to find:

$(x^2+2x-3)(4x^2-5x+6)$

Distribute:

$=(x^2+2x-3)(4x^2)+(x^2+2x-3)(-5x)+(x^2+2x-3)(6)$

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$=(4x^4)+(8x^3-5x^3)+(-12x^2-10x^2+6x^2)+(15x+12x)+(-18)$

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The answer is D.

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2 years ago

What is the approximate area of the triangle￼? A)12.5 B)18 C)21.5 D)31

What is the approximate area of the triangle? A)12.5 B)18 C)21.5 D)31