Answer:
Ben is incorrect
The solutions are x>-3 and x < 3
Step-by-step explanation:
we have
Multiply by -1 both sides
Adds 9 both sides
The solutions are
and
-----> Multiply by -1 both sides ----> 
therefore
The solution is the interval (-3,3)
Ben is incorrect
Answer:
x= 20
Step-by-step explanation:
The three angles add to 90 degrees
x+2x+x+10 = 90
Combine like terms
4x+10 = 90
Subtract 10 from each side
4x +10-10 = 90-10
4x = 80
Divide by 4
4x/4 = 80/4
x = 20
Answer:
3
Step-by-step explanation:
mark brainliest
Answer:
Acute
Step-by-step explanation:
An acute triangle has three angles that each measure less than 90 degrees.
Answer:
1
Step-by-step explanation:
