Answer:
140° and 40°
Step-by-step explanation:
let x be one angle then the other is 
x - 30
Since the angles are a linear pair, theis sum is 180° , then
x + x - 30 = 180, that is
x - 30 = 180 ( add 30 to both sides )
x = 210 ( multiply both sides by 2 to clear the fraction )
3x = 420 ( divide both sides by 3 )
x = 140
and x - 30 = (140) - 30 = 70 - 30 = 40
The 2 angles are 140° and 40°
Answer:
12
Step-by-step explanation:
-2x^2 + 11x - 4
To get this answer, you need to combine like terms. However, before this, remember that you are ADDING, so don’t accidentally subtract any numbers.
Then, just follow these steps:
2x^2 + (-4x^2) = -2x^2
5x + 6x = 11x
-7 + 3 = -4
And proceed to put them in the equation correctly.
Hope this helps!
