Find f(-4) if f(x) =-x-5.
2 answers:
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The ratio of number of fiction books to total number of books that she read 12:13.
Given :
Emily reads 24 friction books and 2 nonfiction books.
Number of fiction books she read =24
Number of nofiction boos she read = 2
Total number of books = 26
To Find :
What is the ratio of the number of fiction books she read to the total number of books that she read ?
Solution :
Total number of books that she read=24+2=26
number of fiction books she read=24
Thus ratio of number of fiction books to total number of books that she read
⇒
⇒
⇒ 12: 13
Hence ratio of number of fiction books to total number of books that she read 12 : 13
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Answer:
Step-by-step explanation:
As per given , we have
n = 11
Since population standard deviation is missing, so we use t-test.
Critical t-value for 99% confidence :
[using two-tailed t-value table]
Confidence interval :
Hence, 99% confidence interval for the mean amount of time that students spend in the shower each day.=