Answer:
It is the same thing except for subtracting -4x and 9x, you subtract -4 and 9 and just add x at the end
No, that would be an invalid inference because he actually sampled from only half of the total population not the entire population.
so 12% of the 50% he sampled would be valid, but since he did not use the entire population, the results cannot affect all of them.<span />
Answer:
4√5i
i represents imaginary number
Answer:
B
Step-by-step explanation: