Answer:
4.426020408 × 10∧19
Step-by-step explanation:
First, I found what 540 multiplied by 0.0000000028 was. Next, I took 66921428571428.6 and divided it by the product I got on top.
Step-by-step explanation:
c^2 = a^2 + b^2
A

B

Answer:
0.4
Step-by-step explanation:
hope this helps :)
At the standard 0.05 value, this is not significant, however at a 0.01 level, it would be significant
D. Is the answer if im wrong then you don't have to thank me