Don’t understand this question your trying to ask
Two angles are supplementary if they add up to 180 degrees.
We have then:
m ∠ DAB + m ∠ ABC = 180
Substituting:
(85 - 2x) + (90 + x) = 180
From here, we clear the value of x:
-x + 175 = 180
x = 175 - 180
x = - 5
Let's try now that it is a parallelogram.
The opposite angles of a parallelogram are equal in measure:
m ∠ DAB = m ∠ BCD
85 - 2x = 80 - 3x
85 - 2 (-5) = 80 - 3 (-5)
85 + 10 = 80 +15
95 = 95
Answer:
x = -5
m ∠ DAB = m ∠ BCD (It is shown to be a parallelogram)
Answer:
E: n(n-2) is odd F: (n - 2)2 is odd
Step-by-step explanation:
Odd numbers are numbers divisible by 2 [ 1, 3, 5, 7, 9 … ]
» Assume n is 3
Answer:
y = 1
x = -1
Step-by-step explanation:
- 4x + 11y = 15
2 = 2y
Find y from the second equation
2 = 2y
2/2 = 2y/2
1 = y
Substitute y into the first equation.
- 4x + 11y = 15
- 4x + 11(1) = 15
- 4x + 11 = 15
-4x = 15 - 11
-4x/-4 = 4/-4
x = -1