I'm guessing these problems are meaning multiplication in which you need to multiply them but don't worry here is your answer.
6 * 36,200 = (217,200)
21 * 8,050 = (169,050)
Subtract your totals which gives you (48,150) is your answer!
Hope this helps.
Have a great day!!!
Answer:
C
Step-by-step explanation:
To see if an ordered pair is a solution, let's substitute the x and y-value into the equation and see if it check out. Let's go through each of the choices.
A) (0,2).
Substitute 0 for x and 2 for y. Thus:
![2\stackrel{?}{=}4(0)-1](https://tex.z-dn.net/?f=2%5Cstackrel%7B%3F%7D%7B%3D%7D4%280%29-1)
Multiply and subtract:
![2\neq -1](https://tex.z-dn.net/?f=2%5Cneq%20-1)
So A is not correct.
B) (1,4)
Same thing:
![4\stackrel{?}{=}4(1)-1](https://tex.z-dn.net/?f=4%5Cstackrel%7B%3F%7D%7B%3D%7D4%281%29-1)
Multiply and subtract:
![4\neq 3](https://tex.z-dn.net/?f=4%5Cneq%203)
So B is not correct.
C) (2,7)
![7\stackrel{?}{=}4(2)-1](https://tex.z-dn.net/?f=7%5Cstackrel%7B%3F%7D%7B%3D%7D4%282%29-1)
Multiply and subtract:
![7\stackrel{\checkmark}{=}7](https://tex.z-dn.net/?f=7%5Cstackrel%7B%5Ccheckmark%7D%7B%3D%7D7)
So, our answer is C.
Let's do D just to double check:
D) (3,6)
![6\stackrel{?}{=}4(3)-1\\](https://tex.z-dn.net/?f=6%5Cstackrel%7B%3F%7D%7B%3D%7D4%283%29-1%5C%5C)
Multiply and subtract:
![6\neq 11](https://tex.z-dn.net/?f=6%5Cneq%2011)
Therefore, our correct answer is C.
And we're done!
Standard form is a+bi where a and b are real numbers
remeber that i²=-1
ok
![\frac{5}{3-15i}](https://tex.z-dn.net/?f=%5Cfrac%7B5%7D%7B3-15i%7D)
we got to get the i out of the denomenator
remember the differnce of 2 perfect squares where (a-b)(a+b)=a²-b²
so multiply the whole thing by
![\frac{3+15i}{3+15i}](https://tex.z-dn.net/?f=%5Cfrac%7B3%2B15i%7D%7B3%2B15i%7D)
we get
![\frac{5(3+15i)}{3^2-(15i)^2}=\frac{15+75i}{9-225(-1)}=\frac{15+75i}{9+225}=](https://tex.z-dn.net/?f=%5Cfrac%7B5%283%2B15i%29%7D%7B3%5E2-%2815i%29%5E2%7D%3D%5Cfrac%7B15%2B75i%7D%7B9-225%28-1%29%7D%3D%5Cfrac%7B15%2B75i%7D%7B9%2B225%7D%3D)
![\frac{15+75i}{234}=\frac{15}{234}+\frac{75i}{234}=\frac{15}{234}+\frac{75}{234}i=\frac{5}{78}+\frac{25}{78}i](https://tex.z-dn.net/?f=%5Cfrac%7B15%2B75i%7D%7B234%7D%3D%5Cfrac%7B15%7D%7B234%7D%2B%5Cfrac%7B75i%7D%7B234%7D%3D%5Cfrac%7B15%7D%7B234%7D%2B%5Cfrac%7B75%7D%7B234%7Di%3D%5Cfrac%7B5%7D%7B78%7D%2B%5Cfrac%7B25%7D%7B78%7Di)
in standard form, it is
We have to show 11.63 as a mixed number.
11.63 = 11 + 0.63
0.63 = 63/100
11.63 = 11 63/100
Answer: 11 63/100
Cannot Be Solved It Has No Solution