X/1 would equal -2- square root of 11 and x2 would equal -2 plus square root of 11
I'd suggest using "elimination by addition and subtraction" here, altho' there are other approaches (such as matrices, substitution, etc.).
Note that if you add the 3rd equation to the second, the x terms cancel out, and you are left with the system
- y + 3z = -2
y + z = -2
-----------------
4z = -4, so z = -1.
Next, multiply the 3rd equation by 2: You'll get -2x + 2y + 2z = -2.
Add this result to the first equation. The 2x terms will cancel, leaving you with the system
2y + 2z = -2
y + z = 4
This would be a good time to subst. -1 for z. We then get:
-2y - 2 = -2. Then y must be 0. y = 0.
Now subst. -1 for z and 0 for y in any of the original equations.
For example, x - (-1) + 3(0) = -2, so x + 1 = -2, or x = -3.
Then a tentative solution is (-3, -1, 0).
It's very important that you ensure that this satisfies all 3 of the originale quations.
Answer:
D
Step-by-step explanation:
A function cannot have to values of y for a same x, and he only which have it is the graph D
Answer:
96
Step-by-step explanation:
Feet have 12 inches each to find the amount in x amount of inches let this equation help you
X=amount of inches
y= amount of feet
X= 12·y
in other word multiply 12 by the amount of feet to get your answer
good luck :)
also... Brainliest?
A) 90-55=35 since a right angle is 90 total\
b)ii
