We have that
y=x²----> equation 1<span>
y=x+2-----> equation 2
multiply equation 1 by -1
-y=-x</span>²
add equation 1 and equation 2
-y=-x²
y=x+2
------------
0=-x²+x+2-------------> -x²+x+2=0-----> x²-x-2=0
Group terms that contain the same variable, and move the
constant to the opposite side of the equation
(x²-x)=2
<span>Complete
the square. Remember to balance the equation by adding the same constants
to each side
</span>(x²-x+0.5²)=2+0.5²
Rewrite as perfect squares
(x-0.5)²=2+0.5²
(x-0.5)²=2.25-----> (x-0.5)=(+/-)√2.25-----> (x-0.5)=(+/-)1.5
x1=1.5+0.5-----> x1=2
x2=-1.5+0.5---- > x2=-1
for x=2
y=x²----> y=2²----> y=4
the point is (2,4)
for x=-1
y=x²----> y=(-1)²---> y=1
the point is (-1,1)
the answer isthe solution of the system are the points(2,4) and (-1,1)
The correct answer would be B
Answer:
Option (2)
Step-by-step explanation:
Option (1).
Therefore, both the sides of the expression are not equal.
False.
Option (2).
True.
Option (3).
False.
Option (4).
Both the sides are not equal.
False.
Answer:
Step-by-step explanation:
-p(d + z) = -2z + 59
-pd - pz = -2z + 59
+pd +pd
-pz = pd - 2z + 59
+2z +2z
pz + 2z = pd + 59
(p + 2)z = pd + 59
÷(p+2) ÷(p+2)
The equivalent fraction to 8 1/3 is 25/3
