Answer:

Step-by-step explanation:
a^2+b^2=c^2
5^2+b^2=16^2
25+b^2=256
b^2=231
b=
In expanded form that would be 4 + 0.2 + 0.09 + 0.003
Hope that helps :)
Answer:
you'd get the expression 6.37+7.8k
Answer:
54
Step-by-step explanation:
90 +36 = 126
There is 180 degrees in a triangle.
180 - 126 = 54