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riadik2000 [5.3K]
3 years ago
8

Please Help me I really need it :)

Mathematics
1 answer:
lapo4ka [179]3 years ago
5 0

Answer:

C

Step-by-step explanation:

For the given intervals

( - ∞, - 5) ← use any value < - 5 but not - 5, the parenthesis ) indicates that x is less than - 5 but not equal to - 5

(- 5, - 1) ← - 4, - 3, - 2 can be used but not - 5 or - 1

(- 1, 4) ← 0, 1, 2, 3 can be used but not - 1 or 4

(4, ∞ ) ← use any value > 4 but not 4

Hence

3 can be used in (- 1, 4)

- 6 can be used in (- ∞, - 5)

zero can be used in (- 1, 4)

- 5 cannot be used in any of the given intervals

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If f(x) = 2x2 - 5 and g(x) = x2 - 4x - 8, find (f - g)(x).
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