Mathematics, 03.02.2020 16:48 coollid876
Eloise started to solve a radical equation in this way: square root of negative 2x plus 1 − 3 = x square root of negative 2x plus 1 − 3 + 3 = x + 3 square root of negative 2x plus 1 = x + 3 square root of negative 2x plus 1 − 1 = x + 3 − 1 square root of negative 2 x = x + 2 (square root of negative 2 x)2 = (x − 4)2 −2x = x2 − 8x + 16 −2x + 2x = x2 + 8x + 16 + 2x 0 = x2 + 10x + 16 0 = (x + 2)(x + 8) x + 2 = 0 x + 8 = 0 x + 2 − 2 = 0 − 2 x + 8 − 8 = 0 − 8 x = −2 x = −8 both solutions are extraneous because they don't satisfy the original equation. what error did eloise make?
Answers: 3
Mathematics, 21.06.2019 18:00
Last year, a state university received 3,560 applications from boys. of those applications, 35 percent were from boys who lived in other states. part a)how many applications did the university receive from boys who lived in other states? part b)applications to the university from boys represented 40percent of all applications. how many applications did the university receive in all? i don't how to do part b so me and plz tell how you got your answer
Answers: 1
Mathematics, 21.06.2019 20:00
Suppose a store sells an average of 80 cases of soda per day. assume that each case contains 24 cans of soda and that the store is open 10 hours per day. find the average number of soda that the store sells per hour.
Answers: 1
Mathematics, 21.06.2019 20:30
The frequency table shows the results of a survey comparing the number of beach towels sold for full price and at a discount during each of the three summer months. the store owner converts the frequency table to a conditional relative frequency table by row. which value should he use for x? round to the nearest hundredth. 0.89 0.90 0.92 0.96
Answers: 2
Eloise started to solve a radical equation in this way: square root of negative 2x plus 1 − 3 = x s...
Biology, 29.01.2021 17:30
Health, 29.01.2021 17:30
Arts, 29.01.2021 17:30
Mathematics, 29.01.2021 17:30
English, 29.01.2021 17:30
Mathematics, 29.01.2021 17:30
Mathematics, 29.01.2021 17:30
Spanish, 29.01.2021 17:30
SAT, 29.01.2021 17:30
Social Studies, 29.01.2021 17:30