subject
Mathematics, 18.12.2020 19:10 wezner19

Eva tried to evaluate an expression step by step. -7/-2 / 4/9
step one: -7/-2 ÷ 4/9
step two: -7/-2 ⋅ 9/4
step three: = -63/8
where did Eva make a mistake?
a. step one
b. step two
c. step three
d. there is no mistake

ansver
Answers: 3

Another question on Mathematics

question
Mathematics, 21.06.2019 15:50
Assemble the proof by dragging tiles to the statements and reasons column
Answers: 2
question
Mathematics, 21.06.2019 17:00
Asocial networking site currently has 400,000 active members, and that figure is predicted to increase by 32% each year. the following expression represents the number of active members on the site after t years.
Answers: 1
question
Mathematics, 21.06.2019 19:30
Me max recorded the heights of 500 male humans. he found that the heights were normally distributed around a mean of 177 centimeters. which statements about max’s data must be true? a) the median of max’s data is 250 b) more than half of the data points max recorded were 177 centimeters. c) a data point chosen at random is as likely to be above the mean as it is to be below the mean. d) every height within three standard deviations of the mean is equally likely to be chosen if a data point is selected at random.
Answers: 2
question
Mathematics, 21.06.2019 21:20
Find the least common denominator for thesetvo rational expressions.n^2/n^2+4n+4 -3/n^2+7n+10
Answers: 2
You know the right answer?
Eva tried to evaluate an expression step by step. -7/-2 / 4/9
step one: -7/-2 ÷ 4/9
s...
Questions
question
Biology, 23.04.2020 07:00
question
Geography, 23.04.2020 07:00
question
Mathematics, 23.04.2020 07:00
question
Social Studies, 23.04.2020 07:00
Questions on the website: 13722363