To solve this I will use substitution method.
First we need to find x so
X - 4 = 9
X -4 (+4) = 9 (+4)
X = 13
Now we can substitute 13 where there is an x in the second equation so instead of
2x - 3y = 11 it would be
2(13) -3y = 11
Now
26 - 3y = 11
26 (-26) -3y = 11 (-26)
-3y = - 15
Y= 5
To prove our answer we can do 2(13) - 3(5) = 11 which is 26 - 15 = 11
X = 13
Y = 5
1/7 I believe is the right answer
Answer:
ans is there is i don't know
The values of the above expressions are
.
Step-by-step explanation:
Given that,
Two expression,
and
![4{\cdot}(-1)^5](https://tex.z-dn.net/?f=4%7B%5Ccdot%7D%28-1%29%5E5)
To find,
The values of the given expressions.
Solution,
First expression,
One of the property of exponent is, ![a^2=a\times a](https://tex.z-dn.net/?f=a%5E2%3Da%5Ctimes%20a)
So,
![(-3)^2{\cdot}4^3{\cdot}(-1)^8=-3\times -3\times 4\times 4\times 4\times (-1)^8\\\\=9\times 64\times 1\\\\=576](https://tex.z-dn.net/?f=%28-3%29%5E2%7B%5Ccdot%7D4%5E3%7B%5Ccdot%7D%28-1%29%5E8%3D-3%5Ctimes%20-3%5Ctimes%204%5Ctimes%204%5Ctimes%204%5Ctimes%20%28-1%29%5E8%5C%5C%5C%5C%3D9%5Ctimes%2064%5Ctimes%201%5C%5C%5C%5C%3D576)
Second expression,
![4{\cdot}(-1)^5](https://tex.z-dn.net/?f=4%7B%5Ccdot%7D%28-1%29%5E5)
So,
![4{\cdot}(-1)^5=4\times -1\times -1\times -1\times -1\times -1\\\\=-4](https://tex.z-dn.net/?f=4%7B%5Ccdot%7D%28-1%29%5E5%3D4%5Ctimes%20-1%5Ctimes%20-1%5Ctimes%20-1%5Ctimes%20-1%5Ctimes%20-1%5C%5C%5C%5C%3D-4)
So, the values of the above expressions are
.
Reference,
brainly.com/question/11229669