Solving a System of Linear Equations Using the Graphing
2 answers:
Answer:
The solution is (22.8, 40.1)
Step-by-step explanation:
Transform the equations to 'y = '
2r + 3y = 169
3y = -2r + 169
y = -2/3 r + 169/3
5r = y + 74
y = 5r - 74.
Now you can use the calculator to draw the graphs or use the equation facility if it has one.
Where the graphs intersect is the solution.
9514 1404 393
Answer:
(r, y) = (23, 41)
Step-by-step explanation:
See the attachment for the solution.
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Answer:
y² - (K- 2)y + 2k +1 = 0
equal roots means D=0
D= b^2 - 4ac
a=1, b= (k-2), c= 2k+1
so,
(k-2)^2 - 4(1)(2k+1) = 0
=> k^2 +4 - 8k -4 = 0
=> k^2 -8k = 0
=> k^2 = 8k
=> k= 8k/k
=> k = 8
Therefore the answer is k= 8
Hope it helps........
The slope intercept form is Y=mx + b
8x - y - 6=0
<u>-8x -8x
</u>-y= -6+8x = 0
<u>+6 +6
</u>-y = 8x + 6
<u>
I hope you understand.
</u>
805 tens is equal to 8050 ones
The answer is 144%
Your welcome
