Answer:
189.12 cm²
Step-by-step explanation:
If the radius of the stickers is 2 cm, then the diameter of each sticker is 4 cm.
1. Using this, divide each length of the sheet of paper by the diameter of 4 cm to see how many stickers can fit without overlapping.
24 ÷ 4 = 6 stickers
33 ÷ 4 = 8.25 = 8 stickers (only eight whole stickers will fit without overlap)
This means there can be a total of 48 stickers because 6*8 = 48.
2. Find the area of one sticker. The formula for the area of a circle if πr² (pi times radius squared) with 3.14 equal to π.
3.14 · 2² → 3.14 · 4 = 12.56 cm²
3. Multiply the area by the number of stickers that can fit on the sheet of paper (48 stickers).
12.56 · 48 = 602.88 cm²
4. Find the area of the sheet of paper. The formula for the area of a rectangle is length · width.
24 · 33 = 792 cm²
5. Subtract the area of the stickers from the area of the sheet of paper to solve for the remaining bare paper around the stickers.
792 - 602.88 = 189.12 cm²
Answer:
Its volume for a sphere where radius is 3cm
The real volume is 113.04 cubic meter
Answer:
x=8.4
Step-by-step explanation:
use tangent to solve the equation which is opposite/adjacent and set up the proportion
the cross multiply to get x=tan(35)×12 then multiply that to get x=8.4
Answer:
The percentage points within which the obtained results would differ from the real population value.
Step-by-step explanation:
The ideas of the margin of error and confidence interval are borne from the observed truth, which is that there is always room for error in any statistically computed figure such as a survey or poll. For example, the result of a poll could show an 80% confidnce interval with a margin of error of 3%. This simply means that if the poll was repeated, 80% of the real population would fall within an estimate of 3%.
Statistics are not always error proof. Sometimes, the results might even be totally different from the computed results. So, it is very important that room is made for the possibility of an error, and that is why we need the mrgin of error.
I got y=x but I’m not sure if that’s correct
