<span>(2 + 5i)(2 + i)
= 4 + 10i + 2i + 5i^2
= 4 + 12i + 5i^2</span>
Keywords
system; linear equations; graphing; solution
we have
-------> equation A
----> equation B
The <u>system</u> of <u>linear equations</u> is composed of equation A and equation B
Substitute the equation B in equation A
![y=-\frac{5}{2}[4-2y]-7](https://tex.z-dn.net/?f=y%3D-%5Cfrac%7B5%7D%7B2%7D%5B4-2y%5D-7)
Find the value of x
![x=4-2[17/4]=-4.5](https://tex.z-dn.net/?f=x%3D4-2%5B17%2F4%5D%3D-4.5)
The<u> solution</u> is the point 
Using a <u>graphing</u> tool
see the attached figure
therefore
the answer is the option A
Answer:
Undefined/infinity
Step-by-step explanation:
(1,1) and (1.2) lie on a vertical line x = 1
Slope of a vertical line is undefined.. approaches infinity
How sad. You were going along so nicely there, with a fascinating problem
that would be fun to work on, and then you suddenly fell off over the edge.
"Which of these ..." always means "Here's a list of choices. Pick out the
correct answer from the list." So we know that there was a list of choices
right there, where you copied the question from. But when you finished
copying the question and reached the list of choices, you stopped there,
never copied the list, and went away to do something else instead.
Without that list, there's no way for us to answer the question "Which of these...".
Answer:
9 inches each day.
Step-by-step explanation:
54 inches divided into 6 days equals 9 in each day
