Answer:
x = 108°
Step-by-step explanation:
In a trapezoid, each lower base angle is supplementary to the upper base angle on the same side.
72° is a lower base angle and x the upper base angle on the same side, hence
x + 72 = 180 ( supplementary angles sum to 180° )
subtract 72 from both sides, thus
x = 108°
1 is 69
2 is 37
3 is 106
4 is 21
Answer:
49/4
Step-by-step explanation:
x^2+7x=4
Take the coefficient of x
7
Divide by 2
7/2
Then square it
(7/2) ^2 = 49/4
Add this to both sides of the equation to complete the square
Answer:
there is no diagram. :)
Step-by-step explanation:
Divide both sides by 3:
|4x + 6| = 8
Now remove the absolute value:
4x + 6 = 8
or
4x + 6 = -8
Subtract both sides by 6:
4x = 2
or
4x = -14
Divide both sides by 4:
x = 1/2
or
x = -7/2
Final answer: x = 1/2 or x = -7/2
