Answer:
thats right
Step-by-step explanation:
Answer:
I think the option B suits the most
Step-by-step explanation:
Answer:
x=19.4
Step-by-step explanation:
a^2+b^2=c^2
x^2+8^2=21^2
x^2+64=441
x^2=377
square root of 377 is 19.41648784
rounded would be 19.4
To get the value of n in the problem above, divide the sum by the number of n's added together. From the given, n + n = 24, there are only two n's added together. Hence, divided 24 by 2. The answer to this item is 12.