A portion of the Quadratic Formula proof is shown. Fill in the missing reason Statements
Reasons
ax2+bx+c 0
Given
ax? + bx-c
Subtract c from both sides of the equation
С
***Ex-
Divide both sides of the equation by a
a
b
b
x2
X +
+
Complete the square and add
b
2a
to both sides
a
2a
2a
b
x2
X +
c b?
a 4a?
Square
b
2a
on the right side of the equation
а
2a
2
x?
+
X +
b
2a
4ac
4a
+
b?
4a?
?
Find a common denominator on the right side of the equation
Square the right side of the equation
Take the square root of the right side of the equation
Multiply the right side of the equation by a

The first one

Step-by-step explanation:

I believe it is the first option, as you can see that, on the right hand side, 4a was multiplied to the first term to make a common denominator. I'm sorry if it is wrong, and I hope this helped.

step-by-step explanation: h: (- 3, 6)

m: (1, - 2)

o: (7, 6)

r: (- 9, - 2)

midpoint of hm: (- 1, 2)

midpoint of or: (- 1, 2)

therefore, b is the midpoint of both diagonals bisect each other !

to prove the diagonals are perpendicular, show that the product of the slopes = - 1

answer

a,b, and d

explanation

a reflection angle is more than

but less than;

an angle that measures

is a reflex angle.(true)

an angle that measures less than

is acute.(true)

provided we are considering angles greater or equal to zero.

an acute angle lies in the range.

an obtuse angle is less than 180° but more than 90°

an angle that measures 300° is obtuse (false)

an angle that measures 65° is an acute angle.(true)