Answer:
351.48cm²
Step-by-step explanation:
Heron’s Formula
Find half the perimeter (30+30+26)/2=43
It’s the square root of each side subtracted from 43, multiplied together, times 43.
√(43-30)*(43-30)*(43-26)*43=√13*13*17*43=√=123539=351.481cm²
Oof this one is hard I think it’s 20 mm but I’m not sure
Y equals negative one over three. absolute value of x plus 4. minus 2
For this case we have, by definition:

So, we have:

On the other hand we have that by definition:

Thus, the expression can be written as:




So, we have:

Answer:
