He is not correct. If this is to be an equilateral triangle then all the angles must be the same measure. That means that 180/3 = 60°. They all have to equal 60°. If one of the angles measures 4x-12, then 4x-12=60. Solving for x, we will add 12 to both sides to get 4x=72. x here is 18. For the other angle measuring 2x+26, we would do the same. 2x+26=60. Subtract 26 from both sides to get 2x= 34 and x = 17. He was way off.
Answer:
a = 11
Step-by-step explanation:
if A is 7 in the equation A + 4, the it could also be written as 7 + 4.
then it would just be simple addition, because you would add 7 + 4, which equals 11.
Hope this helps!
Answer:
1. 6
2. 27
3. 158
4. 9
5. 380
6. 108
7. 48
8. 10
9. 115
10. 57
Step-by-step explanation:
Answer:
the answer is B
Step-by-step explanation:
If you add positive 5 and positive 5, you'll get positive 10.
If you add positive 5 and negative 5, you'll get positive 0.
If you add negative 5 and negative 5, you'll get negative 10.
-5 + 5 = -5 + 5
5 + 5 = 5 + 5
- 5 + -5 = -5 + -5
Does that help your question?
