Mathematics, 10.11.2020 01:30 AM28
Aiden bought some notebooks and book covers for the upcoming school year. He bought a total of 13 items. Each notebook cost $1.37, and each book cover cost $1.08. He spent a total of $16.36. How many notebooks and how many book covers did he buy?
Answers: 3
Mathematics, 21.06.2019 17:30
Monthly water bills for a city have a mean of $108.43 and a standard deviation of $32.09. find the probability that a randomly selected bill will have an amount greater than $155, which the city believes might indicate that someone is wasting water. would a bill that size be considered unusual?
Answers: 2
Mathematics, 21.06.2019 18:10
Yuto and hila attempted to solve the same inequality. their work is shown below. which statement is true about the work shown above? yuto is correct because he isolated the variable correctly and reversed the inequality symbol. yuto is incorrect because he should not have reversed the inequality symbol. hila is correct because she isolated the variable correctly and reversed the inequality symbol. hila is incorrect because she should not have reversed the inequality symbol.
Answers: 2
Mathematics, 21.06.2019 18:20
The first-serve percentage of a tennis player in a match is normally distributed with a standard deviation of 4.3%. if a sample of 15 random matches of the player is taken, the mean first-serve percentage is found to be 26.4%. what is the margin of error of the sample mean? a. 0.086% b. 0.533% c. 1.11% d. 2.22%
Answers: 1
Mathematics, 21.06.2019 19:00
What is the factored form of the following expressions? d^2 – 13d + 36
Answers: 2
Aiden bought some notebooks and book covers for the upcoming school year. He bought a total of 13 it...
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