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kodGreya [7K]
3 years ago
9

Let f(x) = x2 − 3x − 7. Find f(−3)

Mathematics
1 answer:
uranmaximum [27]3 years ago
3 0
Substituting -3 for x, we have:  (-3)^2-3*-3-7.  This simplifies to 9+9-7, or 11.
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The ratio of girls to boys in a school is 3:2. The school has 270 girls. How many boys are there?
Ostrovityanka [42]
GIRLS:BOYS
3         :2
270:x
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2 years ago
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marysya [2.9K]

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7 0
2 years ago
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andrey2020 [161]
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