Answer:
x = 19.42
Step-by-step explanation:
8²+x²=21²
64+x²=441
-64 -64
x²=377
x=19.41648784
rounded is 19.42
Answer:
Step-by-step explanation:
I had this answer
The answer is -4. I solved it on a calculator and got -4
Answer:
y=7
Step-by-step explanation:
6/42 =1/y
y=42/6=7
They are equal because of you simplify 80/100 by dividing by 10 u get 8/10