Answer:
124
Step-by-step explanation:
The sum of interior angles in a triangle is equal to 180:
m<R + m<S + m<T = 180
11x + 3 + x + 15 + 2x + 8 = 180 add like terms
14x + 26 = 180 subtract 26 from both sides
14x = 154 divide both sides by 14
x = 11 to find m<R replace x with 11
11*11 + 3 = 124
Answer: I am a right isosceles
Step-by-step explanation:
Hello,
answer A
5*6.8^0=5*1=5
Answer: x = 1
Step-by-step explanation: When we have this kind of setup, we want to put our variables together on one side of the equation and our numbers together on the other side of the equation.
So first, let's put our variables together on the left side
by subtracting 2x from both sides of the equation.
That gives us 3x + 9 = 12.
Now we can move our numbers to the right by
subtracting 9 from both sides and we get 3x = 3.
Now divide both sides by 3 and <em>x = 1</em>.
