First, 5/3 = 1.6
21 x 1.6 = 34.99999999
But, when I put it in a calculator, the 1.6 was repeated so:
Round 34.99999999 to 35
35 books
Answer: D
Step-by-step explanation:
The answer is 72.
You can figure this out using the Pythagorean theorem: C (78) squared - A (30) squared = B squared though since you already know the longest side.
78 x 78 = 6084
30 x 30 = 900
6084-900= 5184
The square root of 5184 is 72.
Answer:
What exactly is your question?
Step-by-step explanation:
Answer:
commutative
Step-by-step explanation:
it is commutative because both side equal the se thing
