Answer:
Elena could tell without finishing by simplifying both sides. The next step would have been 30x +24x = 30x+24. This would have been simplified down to x=1
Step-by-step explanation:
Answer:
s = 17
Step-by-step explanation:
a^2+b^2=c^2
a=8, b=15, c=s
64+225=c^2
289 =c^2
c= 17
here you go the answers to your question
sorry It's not in standard form
Answer:
26.4
Step-by-step explanation:
area of circle is

and r is 2.9