2 years ago

Determine all intervals on which f(x) > 0.

Mathematics

1 answer:

8_murik_8 [283]2 years ago

4 0

Answer: [-7, -4]u[0, 3]

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Evaluate 7(-4) - |-6| + |4|

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$= 7( - 4) - | - 6| + |4|$

$= - 28 - | - 6 | + |4|$

$= - 28 - 6 + |4|$

$= - 34 + |4|$

$= - 34 + 4$

$= - 30$

The absolute value of a real number a is a when a≥0, or -a when a<0. The absolute value of -6 is 6. The absolute value of 4 is 4.

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