5.
Mai is using the quadratic formula to solve two different quadratic equations.
For the fir...
Mathematics, 24.05.2021 20:50, prissydizzybella5
5.
Mai is using the quadratic formula to solve two different quadratic equations.
For the first equation, she writes x =
-4+V42-4(4)(1)
2(4)
For the second equation, she writes x =
3+(-3) -4(3)(5)
2(3)
How many real solutions will each equation have? Explain how you know.
Answers: 1
Mathematics, 21.06.2019 16:30, skye2598
Kelly is a salesperson at a shoe store, where she must sell a pre-set number of pairs of shoes each month. at the end of each work day the number of pairs of shoes that she has left to sell that month is given by the equation s=300-15x , where s is the number of pair of shoes kelly still needs to sell and x is the number of days she has worked that month. what is the meaning of the number 300 in this equation
Answers: 3
Mathematics, 22.06.2019 04:30, RichardKing2376
Arandom sample of 15 observations is used to estimate the population mean. the sample mean and the standard deviation are calculated as 172 and 63, respectively. assume that the population is normally distributed. a. with 99 confidence, what is the margin of error for the estimation of the population mean? b. construct the 99% confidence interval for the population mean. c. construct the 95% confidence interval for the population mean. d. construct the 83% confidence interval for the population mean. hint: you need to use excel function =t. inv.2t to find the value of t for the interval calculation.
Answers: 1
Mathematics, 22.01.2021 22:40
Mathematics, 22.01.2021 22:40
Mathematics, 22.01.2021 22:40
Mathematics, 22.01.2021 22:40
Mathematics, 22.01.2021 22:40