Answer:
C.
Step-by-step explanation:
< is less than the one with the line is less than equal to
If the base has an area of 8, and we’re dealing in whole numbers, then the dimensions of three of the chests are 2x2x4. The last one is 2x3x4. Just multiply the dimensions by each other to find the volume of one unit, and then add them all together. Hope that helps!
Answer:

Step-by-step explanation:
1) La règle de simplification des fractions est très simple. Divisez simplement le numérateur et le dénominateur par le même nombre (non nul).
Exemple:

2) Une solution possible à cette question:

120 plus petit commun multiple de 2,3,4,5. C'est le principe pour trouver un nombre multiple des nombres 2,3,4 et 5.
Answer:
8pi
Step-by-step explanation:
A "period" of a function just means the length of one cycle. For a graph, what I usually do is pick one of the crests or troughs (high points or low points) and see how many units it takes for me to get from one crest to the next crest, or one trough to the next trough. But for any problem like this, you just need to pick a point on the curve and figure out how long it takes you to get to the same point on the next wave. Crests and troughs are just easier to follow than any random point in the middle. (Looking up a video about this would probably help you visualize it better.)
In your case, there's a trough at -2pi and another trough at 6pi, so it takes 8pi to get from one to the other. You can double check this by choosing the crest at -6pi and seeing how many units it takes for you to get from -6pi to the next crest at 2pi. Again, the answer is 8pi, so the period of this function will be 8pi.
X=4.5 combine like terms and then solve for x