Answer:
Trick question? You can't cut 23 feet from an 18 foot roll.
Did you leave out the decimal points?
Step-by-step explanation:
They can be derived by using calculus(integration to be precise)


(its how pi is defined)
so that gives circumference
to get area , you use integration


that gives the area.
if you don't know calculus yet ,dont worry, just remember the formulae.
Answer:
156
Step-by-step explanation:
Let number of juniors be j and number of seniors be s
Thus, we can write:
<u> 236 juniors and seniors in Mr. Jay's math class:</u>
j + s = 236
Also
<u>There are 4 fewer juniors than twice the number of seniors:</u>
j = 2s - 4
Now putting equation 2 into 1, we can solve for s:
j + s = 236
2s - 4 + s = 236
3s = 240
s = 80
Hence, juniors is:
j = 2s - 4
j = 2(80) - 4
j = 156
There are 156 juniors
Density is population per area. so,
2134411/10400
=205.23
Step-by-step explanation:
a) tails - 1/2
b) heads or tails - 1
c) heads and tails - 1/4