Chegg 1) Find the expected number of people who think laws should be stricter and are democrats.2) Find the expected number of people who think laws should be stricter and are Independent.3) What is the critical value you will use to test the null hypothesis of independence at 5% significance level

What are the solutions of the system? solve by graphing. y = -x^2 - 3x + 2 y = -2x + 2

Ariana starts with 100 milligrams of a radioactive substance. the amount of the substance decreases by 20% each week for a number of weeks, w. the expression 100(1−0.2)w finds the amount of radioactive substance remaining after w weeks. which statement about this expression is true? a) it is the difference between the initial amount and the percent decrease. b) it is the difference between the initial amount and the decay factor after w weeks. c) it is the initial amount raised to the decay factor after w weeks. d) it is the product of the initial amount and the decay factor after w weeks.

If abcde is reflected over the x-axis and then translated 3 units left, what are the new coordinates d?