Answer:
0.375
Step-by-step explanation:
1.y=2x-1
2.y=-x+2
using substitution method
1.y=2x-1
y+1=2x
the other equation where there is an <em><u>x </u></em><em><u>will </u></em><em><u>be </u></em><em><u>replaced </u></em>by a <em><u>the </u></em><em><u>first </u></em><em><u>equation</u></em>
so
2.y=-(y+1)+2
y=-y-1+2
y=-y+1
y+y=1
2y=1
2y/2=1/2
y=0.5
the value of y is <em><u>0</u></em><em><u>.</u></em><em><u>5</u></em> the value of x would be found by <em><u>taking </u></em><em><u>the </u></em><em><u>y </u></em><em><u>and </u></em><em><u>replacing</u></em><em><u> </u></em><em><u>it </u></em><em><u>with </u></em><em><u>0</u></em><em><u>.</u></em><em><u>5</u></em><em><u> </u></em><em><u>in </u></em><em><u>any </u></em><em><u>of </u></em><em><u>questions</u></em><em><u> </u></em><em><u>one </u></em><em><u>and </u></em><em><u>two.</u></em>
1.y(0.5)=2x-1
0.5=2x-1
0.5+1=2x
1.5=2x
1.5/2=2x/2
0.75=x
the value of <em><u>y </u></em><em><u>is </u></em><em><u>0</u></em><em><u>.</u></em><em><u>5</u></em> and <em><u>x </u></em><em><u>is </u></em><em><u>0</u></em><em><u>.</u></em><em><u>7</u></em><em><u>5</u></em>
<em><u>0</u></em><em><u>.</u></em><em><u>5</u></em><em><u>*</u></em><em><u>0</u></em><em><u>.</u></em><em><u>7</u></em><em><u>5</u></em><em><u>=</u></em><em><u>0</u></em><em><u>.</u></em><em><u>3</u></em><em><u>7</u></em><em><u>5</u></em>
=0.375
Answer:
If the roots of any equation are equal then it means that their Discriminant = 0
So, b²-4ac = 0
We have given the equation 2x² + kx + 2, where,
a = 2
b = k (we have to find the value)
c = 2
Then, b²-4ac=0
b² - 4(2)(2) = 0
b² - 16 = 0
b² = 16
√16 = 4
Hence the vue of k is 4.
Read more on Brainly.in - https://brainly.in/question/15922720#readmore
Step-by-step explanation:
hope it helps you ( ◠‿◠ )
C is the answer I pretty sure of it
5x+8y = 24
The answer is c) y=3 -5/8 x
