Answer: your answers are correct. I inserted an image of the answers.
Answer:
72
Step-by-step explanation:
We know that it isn't a 90 degree angle so we do process of elimination, now we have 2 answers, just by looking at it is is probably 72. Hopefully you get it right.
10.101, hope this helps :)
Firstly, we will let this mystery number we are finding be labelled as x. Double this number can be written as 2x. 5 less than double this number is written as 2x - 5. And because this number is between -7 and 13, we have the full inequality, -7 < 2x - 5 < 13.
To solve this inequality, we want to isolate x, so we add 5 to all 3 parts of the inequality. Doing so cancels out the - 5 in the middle, so our new inequality is -2 < 2x < 18. Now we want to divide all 3 parts of the inequality by 2 to isolate x, so now our final inequality is -1 < x < 9. Thus, we can say that x is between -1 and 9.
You can make 8 triangles from this shape.
