<span>since sin and cos = each other at pi/4; take your integrals from 0 to pi/4
</span><span>[S] cos(t) dt - [S] sin(t) dt ;[0,pi/4]
</span>
<span>to revolve it around the x axis;
we do a sum of areas
[S] 2pi [f(x)]^2 dx
</span>
<span>take the cos first and subtract out the sin next; like cutting a hole out of a donuts.
</span><span>pi [S] cos(x)^2 dx - [S] sin(x)^2 dx ; [0,pi/4]
</span>
<span>cos(2t) = 2cos^2 - 1
cos^2 = (1+cos(2t))/2
</span>
<span>1/sqrt(2) - (-1/sqrt(2) +1)
1/sqrt(2) + 1/sqrt(2) -1
(2sqrt(2) - sqrt(2))/sqrt(2) = sqrt(2)/sqrt(2) = 1</span>
The first thing you do is you divide the annual interest
into 12 months
4.8 % / 12
Make sure that you convert the interest
So 0.048/12
Then you get the interest last month so that is
2.25/ (0.048/12)
The answer is 562.5
B.$562.5
Hello!
The answer is steak's temperature = chicken's temperature since they are both -6.3°C
Hope this helps!
Answer:
its b
Step-by-step explanation:
because its on usatestprep
Whole numbers because it is mostly whole numbers