2.4 Factorise the following: 2.4.1 x3 – 4x2 - 3x + 12
2.4.2 10ac + 2bd + bad + 4bc
2.4.3 12x3 + 14x2 - 40x
2.4.4 20 x´y3 - 5xys + 10x2y​

You just purchased two coins at a price of $670 each. because one of the coins is more collectible, you believe that its value will increase at a rate of 7.1 percent per year, while you believe the second coin will only increase at 6.5 percent per year. if you are correct, how much more will the first coin be worth in 15 years?

How much is $1200 worth at the end of1 year, if the interest rate is 5.5% is compounded quarterly.

On a certain portion of an experiment, a statistical test result yielded a p-value of 0.21. what can you conclude? 2(0.21) = 0.42 < 0.5; the test is not statistically significant. if the null hypothesis is true, one could expect to get a test statistic at least as extreme as that observed 21% of the time, so the test is not statistically significant. 0.21 > 0.05; the test is statistically significant. if the null hypothesis is true, one could expect to get a test statistic at least as extreme as that observed 79% of the time, so the test is not statistically significant. p = 1 - 0.21 = 0.79 > 0.05; the test is statistically significant.