Step-by-step explanation:
my guess b
when I put × = 0 it's the only one that shows y = -2
Are you asking how to, or what is?
Answer:
Step-by-step explanation:
Spilt 5 into 3 parts (equal) and shade 2 of those parts
The measurement of ∠B is 168°
Given,
In the question:
Angle A and Angle B are supplementary angles.
If mA (x - 9)° and m/B= (7x + 21)°
To find the measure of ∠B
Now, According to the question;
What are supplementary angles?
Two angles are Supplementary when they add up to 180 degrees.
Now, ∠A+∠B = 180°
So,
⇒(x - 9)˚+(7x + 21)°=180°
=> 8x +12 = 180°
=> 8x = 180° - 12
=> 8x = 168
=> x = 168/8
=> x = 21
For the measure of ∠B :
∠B = (7x + 21)
∠B = 7 x 21 + 21
∠B = 168°
Hence, The measurement of ∠B is 168°
Learn more about Supplementary angles at:
brainly.com/question/13045673
#SPJ1
- x/9 - y/7 = 1
multiply through by 63:-
- 7x - 9y = 63 Answer
