Answer:
D is the answer
Step-by-step explanation:
4y - 8y² + 9y - 7y² ( collect like terms)
13y - 15y²
Hope this helped!!!
Answer: The mean increases.
Step-by-step explanation:
The value of 0.9 mg/L is very low compared to a means of 7.6 mg/L with a standard deviation of 2.1 mg/L. It seems as though it is an outlier that is suffiently different from the others, and probably should be dropped from the data set. That would do 2 things: 1) the stabdard deviation will likely decrease, indicating a more confident data set, and 2) the mean vitamin C level will increase.
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Answer:
6620
Step-by-step explanation:
213(5) + 1111 (5)=
Let's Multiply first.
213 × 5 = 1065
Then 1111 × 5 = 5555
5555 + 1065 = 6620
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