Answer:
a
Step-by-step explanation:
A store sells tea cups in sets of 9 and saucers in sets of 12. The store sold the same number of individual cups and saucers in the same day. What is the least number of individual cups and saucers the store could have sold?
Answer:
0.007502795
Step-by-step explanation:
We have
N = 10,000


Replacing these values in the expression for k:

So, the intensity is given by the function

The <em>total light intensity</em> is then

Since
is an <em>even function</em>

and we only have to divide the interval
in five equal sub-intervals
with midpoints 
The sub-intervals and their midpoints are
![\bf I_1=[0,\frac{10^{-6}}{5}]\;,m_1=10^{-5}\\I_2=[\frac{10^{-6}}{5},2\frac{10^{-6}}{5}]\;,m_2=3*10^{-5}\\I_3=[2\frac{10^{-6}}{5},3\frac{10^{-6}}{5}]\;,m_3=5*10^{-5}\\I_4=[3\frac{10^{-6}}{5},4\frac{10^{-6}}{5}]\;,m_4=7*10^{-5}\\I_5=[4\frac{10^{-6}}{5},10^{-6}]\;,m_5=9*10^{-5}](https://tex.z-dn.net/?f=%20%5Cbf%20I_1%3D%5B0%2C%5Cfrac%7B10%5E%7B-6%7D%7D%7B5%7D%5D%5C%3B%2Cm_1%3D10%5E%7B-5%7D%5C%5CI_2%3D%5B%5Cfrac%7B10%5E%7B-6%7D%7D%7B5%7D%2C2%5Cfrac%7B10%5E%7B-6%7D%7D%7B5%7D%5D%5C%3B%2Cm_2%3D3%2A10%5E%7B-5%7D%5C%5CI_3%3D%5B2%5Cfrac%7B10%5E%7B-6%7D%7D%7B5%7D%2C3%5Cfrac%7B10%5E%7B-6%7D%7D%7B5%7D%5D%5C%3B%2Cm_3%3D5%2A10%5E%7B-5%7D%5C%5CI_4%3D%5B3%5Cfrac%7B10%5E%7B-6%7D%7D%7B5%7D%2C4%5Cfrac%7B10%5E%7B-6%7D%7D%7B5%7D%5D%5C%3B%2Cm_4%3D7%2A10%5E%7B-5%7D%5C%5CI_5%3D%5B4%5Cfrac%7B10%5E%7B-6%7D%7D%7B5%7D%2C10%5E%7B-6%7D%5D%5C%3B%2Cm_5%3D9%2A10%5E%7B-5%7D)
<em>By the midpoint rule</em>
![\bf \int_{0}^{10^{-6}}I(\theta)d\theta\approx\frac{10^{-6}}{5}[I(m_1)+I(m_2)+...+I(m_5)]](https://tex.z-dn.net/?f=%20%5Cbf%20%5Cint_%7B0%7D%5E%7B10%5E%7B-6%7D%7DI%28%5Ctheta%29d%5Ctheta%5Capprox%5Cfrac%7B10%5E%7B-6%7D%7D%7B5%7D%5BI%28m_1%29%2BI%28m_2%29%2B...%2BI%28m_5%29%5D)
computing the values of I:


Similarly with the help of a calculator or spreadsheet we find

and we have
![\bf \int_{0}^{10^{-6}}I(\theta)d\theta\approx\frac{10^{-6}}{5}[I(m_1)+I(m_2)+...+I(m_5)]=\frac{10^{-6}}{5}(18756.98654)=0.003751395](https://tex.z-dn.net/?f=%20%5Cbf%20%5Cint_%7B0%7D%5E%7B10%5E%7B-6%7D%7DI%28%5Ctheta%29d%5Ctheta%5Capprox%5Cfrac%7B10%5E%7B-6%7D%7D%7B5%7D%5BI%28m_1%29%2BI%28m_2%29%2B...%2BI%28m_5%29%5D%3D%5Cfrac%7B10%5E%7B-6%7D%7D%7B5%7D%2818756.98654%29%3D0.003751395)
Finally the the total light intensity
would be 2*0.003751395 = 0.007502795
I'm pretty sure the answer is 9 mix spice, hope I helped!
Answer:
Step-by-step explanation:
После того как от проволоки отрезали несколько
сантиметров, в мотке осталось 32 сантиметра.
Сколько сантиметров проволоки отрезали от
мотка?