Answer:
x = 20
y = 26
Step-by-step explanation:
40 and 2x are vertical angles, so they're equal to each other.
40 = 2x
Divide both sides by 2
x = 20
We see that 40 and 5y + 10 are a linear pair, which means they add up to 180.
5y + 10 + 40 = 180
5y + 50 = 180
5y = 130
y = 26
by pythagorean formula, the last side is √(61)
by cos rule
cos A
A = 39.81
3:4
6:8
9:12
if u either multiply or divide a number from one side, u must do the same calculation to the other side. hope that helps :)
Answer:
x = 6
Step-by-step explanation:
Isolate the variable by dividing each side by factors that don't contain the variable.
Answer:
x=2
Step-by-step explanation:
