Answer:
In image
Step-by-step explanation:
You need to draw it yourself
360 ÷ 12 = 30.
The measure of an interior angle of a dodecagon is 30°. (:
Answer:
Step-by-step explanation:
what are the options
60 = (10 + 20 + 30 + 40 + x)/5
300 = 100 + x
x = 200
Answer: 200
Answer:
x=5 y=-6
Step-by-step explanation:
3x+y=9 ------eqn1
y=4-2x -------eqn2
using substitution
put y=4-2x into eqn1
3x+4-2x=9
x=5
put x=5 into eqn2
y=4-2(5)
y=4-10
y=-6