Answer: Stephanie read more than 7 books because 8 points for 9 books each is equal to 72 points, which is the total amount of books she read.
Step-by-step explanation:
72 ÷ 8 × 9
x = 9
Hope this helped! :D
Answer:
Step-by-step explanation:
That'd be the Identity Property of Multiplication.
Answer: 68
Step-by-step explanation:
As per given , we have
Population standard deviation :
Critical value for 90% confidence interval =
Margin of error : E= 0.8 milligrams
The formula to find the sample size is given by :-
i.e.
Hence, the limnologist must analyze 68 samples.
Answer:
6383.08
Step-by-step explanation:
J'ai dû utiliser google translate, mais j'espère que cela vous aidera.
A=18 !!! i hope this helps!