Mathematics, 19.02.2021 18:20 templetiggerxyz
Hi. I have 3 of 7 marks on this problem so far, looking for the other 4. I don't believe I have "shown clearly" that x^2+12x-160=0, but everything I've tried produces no more marks.
I'm also not sure I've shown enough of the factorisation, but again everything I've tried has produced no more marks.
Mathswatch is notoriously selective when it comes to the phrasing of answers, so I'm hoping someone out there has answered this exact question with full marks and knows what Mathswatch expects to see here. Any help would be appreciated though.
Answers: 3
Mathematics, 21.06.2019 17:00
Imogene invested $8,000 in a bank account that pays 8 percent simple interest at the end of each year. her friend invested the same amount in stocks where the growth of the investment is represented as 2,000 times the square root of 2 less than the time lapsed in years. if y1 and y2 represent the amount earned in dollars and t is the time lapsed in years, which system of equations correctly represents the situation?
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Mathematics, 21.06.2019 23:00
Two years ago a man was six times as old as his daughter. in 18 years he will be twice as old as his daughter. determine their present ages.
Answers: 1
Hi. I have 3 of 7 marks on this problem so far, looking for the other 4. I don't believe I have "sho...
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