2x+3y=8 9x-3y = 14solve by substitution
1 answer:
Answer: x=2 and y=4/3
Step-by-step explanation:
To solve by substitution method, you want to solve for one variable, and plug it into the other equation.
Let's solve for y in 2x+3y=8.
[subtract both sides by 2x]
[divide both sides by 3]
Now that we have y, we can plug it into the second equation.
[plug in y]
[multiply 3 and y to cancel out the 3]
[distribute -1 to 8-2x]
[combine like terms]
[add both sides by 8]
[divide both sides by 11]
Since we know the value of x, we can substitute it back into any of the 2 equations to find y.
[plug in x=2]
[multiply 2 and 2]
[subtract both sides by 4]
[divide both sides by 3]
Our final answer is x=2 and y=4/3.
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Hey There!! ~
The answer to this is: the upper bound for the length is Lower and Upper Bounds
The lower bound is the smallest value that will round up to the approximate value.
The upper bound is the smallest value that will round up to the next approximate value.
Ex:- a mass of 70 kg, rounded to the nearest 10 kg, The upper bound is 75 kg, because 75 kg is the smallest mass that would round up to 80kg.
Here , A length is measured as 21cm correct to 2 significant figures. We need to find what is the upper bound for the length . let's find out:
As discussed above , upper bound for any number will be the smallest value in decimals which will round up to next integer value . So , for 21 :
⇒
21.5 cm on rounding off will give 22 cm . So , the upper bound for the length is
Hope It Helped!~
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Answer:
Step-by-step explanation:
Knowing that you have to find two numbers that when they differ to 3, they also multiply to −4, and those numbers are −1 and 4. So, after clearing that up, you will have this [since our degree of this polynomial function is 4]:
Then, since is factorable, you will get this:
Finally, attach to the partially factored polynomial to get this:
I am joyous to assist you anytime.