Answer:
13 < n < 51
Explanation:
Basically to find the lowest possible length, all you need to do is subtract the lower number from the higher number (32 - 19), and to find the greatest possible length, add the lower number and the higher number (32 + 19). Then you'd plug it in to this inequality: a < n < b, a being the difference, and b being the sum. But, if the triangle were a right triangle that would be a whole different story.
80 times 1 divided by 10 is 8.
Answer:
-2/5
Step-by-step explanation:

Expand parentheses:

Hope this helps!
Answer:
r = 6.7
Step-by-step explanation:
9²-6²=45
√45=6.7