Can someone tell me all of the rational numbers
1 answer:
Answers: The rational numbers in that list are:
- 1
- -79
- 0.3125
Recall that an irrational number cannot be written as a simple fraction, so the numbers that can be written in a simple fraction are the ones that are rational. Thus, the numbers in the previous list are rational because you can convert them into simple fractions.
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Given is a piecewise function which follows different expressions according the the value of input x.
Given
It says to find f(-4) i.e. the value of function f(x) at x = -4.
At point x = -4, f(x) is x³, if -5 ≤ x ≤ 2.
So, f(-4) = (-4)³
f(-4) = -4 × -4 × -4
f(-4) = -64.
Hence, option A is correct i.e. -64.