Answer:
14.7
Step-by-step explanation:
a^2+b^2=c^2
15^2+b^2=21^2
225+b^2=441
subtract 441-225=216
square root of 216 = 14.6969384567
= 14.7
The person above me is right
Answer:
um......ok but im tryna save my points...but ty for the points anyway
Step-by-step explanation:
Answer:
C
Step-by-step explanation:
Hope this helps :)
Add 9 and the next number is 51
