Answer:
8
Step-by-step explanation:
10 + 8 = 18
18 x 2 = 36
If we plug the given value of y = 6 into the equation, we get:

which can be rearranged to
2x = 42
giving x = 21.
Therefore the other half of the coordinate is 21.
Answer:
85
Step-by-step explanation:
<em>The equation for the discriminant is </em>
b^2-4(a)(c)
<em>Plug your numbers in from the equation. </em>
<em>1=a, -7=b, -9=c</em>
<em />
(-7)^2-4(1)(-9)
49-(-36)
49+36
85
It is true, how??Here is explanation:
Consider a quadrilateral ABCD .Join diagnol AC so two triangles ABC & ACD will form.
Sum of interior angles of ABC is 180 and that of ACD is 180 as well.So, the total sum of the interior angles of ABC & ACD is 360 which is the sum of interior angles of quadrilateral itself.
es correcto porque 7+2 x 2= 18 , y 4x3 es 18