Mathematics, 18.11.2019 23:31 naomicervero
Rita needs to replace the ink cartridge for her printer. she found four brands that make replacement cartridges. the table below shows the prices and number of pages expected from each brand.
ink cartridges
brand
price
number of pages
a
$20.00
200
b
$25.00
125
c
$30.00
150
d
$35.00
which brand is the best buy?
a
b
c
d
Answers: 3
Mathematics, 21.06.2019 16:20
Refer to interactive solution 17.45 to review a method by which this problem can be solved. the fundamental frequencies of two air columns are the same. column a is open at both ends, while column b is open at only one end. the length of column a is 0.504 m. what is the length of column b?
Answers: 1
Mathematics, 21.06.2019 22:50
Aclassroom is made up of 11 boys and 14 girls. the teacher has four main classroom responsibilities that she wants to hand out to four different students (one for each of the four students). if the teacher chooses 4 of the students at random, then what is the probability that the four students chosen to complete the responsibilities will be all boys?
Answers: 1
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