Answer:
9.8z + 113.3
Step-by-step explanation:
Combine like terms!
12.5z - 2.7z = 9.8z
19.4 + 93.9 = 113.3
z = 4.90131578
121 cm
12x13=156
7x5= - 35
________
121
±
We need to find .
Now, we know that and
Therefore: ±
Summarizing, the real square roots of 144 are ±