The isosceles triangle has two sides congruent which mean they are equal. If two sides are equal, it also means that two angles are equal.
For triangle XYZ, we have angles shown below:
∠X + ∠Y + ∠Z = 180°
If ∠Y = a°, then we can have the expression for ∠X such as shown below:
∠X + a° + ∠Z =180°
∠X= 180° - a° - ∠Z
If ∠Z = ∠Y, then we have the final expression:
∠X = 180° -2a°
Step 1: Multiply both sides by 5.
4x = 2
5
(4x) * (5) = (2) * (5)
5
4x = 10
Step 2: Divide both sides by 4.
4x = 10
4 4
Answer:
x = 5
2
The discriminant is b^2-4ac
In this equation 9=a, 12=b, 4=c
Plugging into the formula
12^2-4(9)(4)=
144-324 =
-180 is the discriminant
Since the discriminant is a negative number there are no real roots
a. Using point C as a center of rotation, rotate the figure 90 degrees counterclockwise. Then, translate the figure 4 units down.
7*(x+5)*(x -5) that is your answer right there
