Remember that X will always be one up or down depending on if there is a - or not (if it is just an x) and one over! Hope this helps
Answer:
(
−
∞
,
∞
) {
x
|
x
∈
R
}
Step-by-step explanation:
The domain of the expression is all real numbers except where the expression is undefined. In this case, there is no real number that makes the expression undefined.
The answer would be -27 but since you aren't using negatives, A trick I use is cross the line change the sign. So it would be 1/27 I believe
Answer:
∣∣3.45∣∣=3.45
Step-by-step explanation:
45 min. - 4 peoples - 5 walls
? min. - 6 peoples - 4 walls
-------------------------------------------
180 min. - 1 man - 5 walls ⇒
36 min. - 1 man - 1 wall ⇒
6 min. - 6 peoples - 1 wall ⇒
24 min. - 6 peoples - 4 walls (answer)