Answer:
Operation- Scientific notation
Power of of 10 involved- positive 4
Step-by-step explanation:
I'm sorry if the last one isnt correct its been a while since i have done that stuff.
Answer:
The answer is -8
Step-by-step explanation:
Hope this helped! Have a great day!
Lets say that the two unknown integers are
![n](https://tex.z-dn.net/?f=n)
and
![m](https://tex.z-dn.net/?f=m)
.
We know the following things about
![n](https://tex.z-dn.net/?f=n)
and
![m](https://tex.z-dn.net/?f=m)
:
![n+m=26](https://tex.z-dn.net/?f=n%2Bm%3D26)
![n^2+m^2=340](https://tex.z-dn.net/?f=n%5E2%2Bm%5E2%3D340)
And, we want to find
![nm](https://tex.z-dn.net/?f=nm)
.
To solve this, we'll use the expansion of the squared of the sum of any two inegers; this is expressed as:
![(n+m)^2=n^2+2nm+m^2](https://tex.z-dn.net/?f=%28n%2Bm%29%5E2%3Dn%5E2%2B2nm%2Bm%5E2)
So, given what we know about the unknown integers, the previous can be written as:
![(26)^2=340+2nm](https://tex.z-dn.net/?f=%2826%29%5E2%3D340%2B2nm)
We can easily solve for
![nm](https://tex.z-dn.net/?f=nm)
:
The answer is 168.
Another approach to solve the problem is, from the two starting equations, compute the values of
![n](https://tex.z-dn.net/?f=n)
and
![m](https://tex.z-dn.net/?f=m)
, which are 12 and 14, and directly compute their product; however, the approach described is more elegant.
The expression that will find the amount of interest tran will be charged after the first month is: (0.01) (300 dollars).
<h3>Expression</h3>
First step
Monthly interest rate = (Annual percentage rate ÷ Number of months in a year)
Monthly interest rate= 0.12 ÷ 12
Monthly interest rate= 0.01
Second step
Amount left = Amount charged - Amount paid
Amount left = $450 - $150
Amount left = $300
Third step
Amount of interest=Monthly rate ×Amount left
Amount of interest=(0.01) (300 dollars)
Amount of interest=$3
Therefore the expression that will find the amount of interest tran will be charged after the first month is: (0.01) (300 dollars).
Learn more about expression here:brainly.com/question/11277823