Answer:
x + y + z = 180 (this is the first equation)
w + z = 180 (this is the second equation)
Now, rewrite the second equation as z = 180 - w and substitute that for z in the first equation:
x + y + (180 - w) = 180
x + y - w = 0
x + y = w
Step-by-step explanation:
Answer:
2. a1 = 10 and an = a(n-1) + 2
Step-by-step explanation:
10 is our first term so it would be a of 1.
Then, in this arithmetic sequence, it is increasing by 2.
So, therefore our recursive formula for this arithmetic sequence would be:
a(n) = a(n-1) + 2
Answer:
Explanation:
Rewrite in slope intercept form "y = mx + b"
Here the slope is 4/3 and y-intercept is -4
Perpendicular lines has negatively inverse slope.
→ per. slope = -(slope)⁻¹ = -(4/3)⁻¹ = -3/4
no i think because theres a negative
