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AlladinOne [14]
3 years ago
9

Use FOIL to derive the identify for (a+b)^2.​

Mathematics
1 answer:
Firlakuza [10]3 years ago
3 0

Answer:

a^2+2ab+b^2

Step-by-step explanation:

FOIL method is First variables Outer variables Inner variables Last variables

(a+b)^2 rewritten is (a+b)(a+b)

F - a*a

O - a*b

I - a*b

L - b*b

a*a+a*b+a*b+b*b

simplify

a^2+2ab+b^2

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Answer:

B.

Step-by-step explanation:

Well we know that

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and we also can get y outside.

so we have:

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7 0
3 years ago
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marissa [1.9K]

Answer:

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Step-by-step explanation:

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Find the area of the figure
lana [24]

Answer:

Below

Step-by-step explanation:

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A = (2)(6) / 2

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Next I found the area of the rectangle using A = LW

A = (6)(3)

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3 years ago
Find the area and the circumference of a circle with radius 7 cm.
aniked [119]

Answer:

C=14pi cm

A=49pi cm^2

Step-by-step explanation:

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2) Area of a circle is piR^2 and R=7cm

A=pi (7)^2

A=49pi cm^2

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3 years ago
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