Answer: m<BCD = 130 degrees
9x - 5 = 4x + 5 + 65
simplify
9x - 5 = 4x + 70
add 5 to both sides
9x = 4x + 75
subtract 4x from both sides
5x = 75
divide both sides by 5
x = 15
substitute 15 for x
9(15) - 5
135 - 5
130
Therefore, m<BCD = 130 degrees
Answer:49+2m
Step-by-step explanation:
49+2m
Increase,another way to say addition
Twice means “two times”
A number would be a variable since it’s unknown
Answer:
Acute
Step-by-step explanation:
Since c^2<a^2+b^2, it is an acute triangle.
100+144<225