Answer:
Number 1 is a right triangle
Number 2 is a right triangle
Number 3 is NOT a right triangle
Number 4 is NOT a right triangle
Step-by-step explanation:
Hope this helps :)
Answer: 60 4 X 5= 20 x 3 = 60
3x+50+6x-10=180
I combined the two equations and now you can solve for x
start by adding 3x plus 6x and subtracting 10 from 50 and you get a new equation
9x +40 =180
now from here you should be able to do the rest
just subtract 40 from 180 to get 9x=140
and what is 140 divided by 9
The answer to that problem is
D. 15
When ever I divide a number by ten I move the decimal over to the left one time
so my final answer is 65.5