x = 9
Hope this helps you :)
Given that the sample mean is μ=74 and sample standard deviation σₓ=
.
Thge Z- score is 
.
Now we use the Z-score to calculate the required probability.
Refer to standard normal distribution table.
The required probability is
In this item, it can be seen that from an expression of,
(4 + 5i) + (-3 + 7i)
Aiko transformed the equation by factoring out the i's from the expression and wrote it as,
(4 + 5)i + (-3 + 7)i
Now this is wrong because i there is not a variable but a notation that 5 and 7 are imaginary numbers. In fact, she cannot factor out the i's because it is not present in both -3 and 4. The answer therefore to this item is the last sentence, "Aiko incorrectly used the distributive property by combining ..."
Answer: okay, bye
Step-by-step explanation:
Answer:
$6.75
Step-by-step explanation:
Divide 33.75 by 5, they are $6.75 each
