Answer: B. 500
Step-by-step explanation:
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Answer:
d. p = 2*20 + 2*10
Step-by-step explanation:
You know to find the perimeter, just add side + side + side + side.
And two pairs of sides on a rectangle are congruent, so the missing side lengths based on the width and length, will be 20 & 10.
So add 20 + 20 + 10 + 10.
To simplify this, say 2*20 and 2*10. And then add them.
So it is D
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+
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equals
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.
First, simplify
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to
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and also
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to
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. Your problem should look like:
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+
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.
Second, find the least common denominator of
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and
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to get 9.
Third, make the denominators the same as the least common denominator (LCD). Your problem should look like:
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+
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.
Fourth, simplify to get the denominators the same. Your problem should look like:
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+
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.
Fifth, join the denominators. Your problem should look like:
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.
Sixth, simplify. Your problem should look like:
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, which is the answer.
F(-5) just means that your substituting the number -5 for every x value. So if you have x+1 this would be -5+1 which is -4