Answer:
4
Step-by-step explanation:
Given
x² - 4x + 10 = 0
subtract 10 from both sides
x² - 4x = - 10
To complete the square
add ( half the coefficient of the x- term )² to both sides
x² + 2(- 2)x + 4 = - 10 + 4
(x - 2)² = - 6
To complete the square add 4
The two given angles are vertical angles which mean they are the same:
9x + 72 = 4x + 112
Subtract 72 from bot sides:
9x = 4x + 40
Subtract 4x from both sides:
5x = 40
Divide both sides by 5:
X = 8
Answer:
d.
D: {-7, 0, 2, 6}
R: {-13, 0, 5, 13}
Step-by-step explanation:
Domain of a relation is the set of all input values (x-values) while the range is the set of all corresponding output values (y-values) in a given relation.
Given the relation represented by the table above,
Domain would be: {-7, 0, 2, 6}
Range: {-13, 0, 5, 13}
