20 Points please help Describe the end behavior of the following polynomial. Select TWO that apply.
f(x) = x^4 - 2x^3 + x

1. x →∞, f(x) →∞

2. x →∞, f(x) →-∞

3. x →-∞, f(x) →∞

4.x →-∞, f(x) →-∞

Someone this asap for a group of students attends a basketball game. * the group buys x hot dogs at the concession stand for $2 each. * the group buys y drinks at the concession stand for $3 each. the group buys 29 items at the concession stand for a total of $70. how many hot dogs did the group buy?

Stu and ambrose are working together on a study of whether diet is related to students' mental health. first, they randomly select 10 students from the student center and 10 students from the office of counseling and psychological services. then, they ask students to rate their diet in terms of healthiness on a scale of 1-100 before completing a 20-item mental health survey. a) name one of the constructs being studied b) how was the construct you named above operationally defined in this experiment? e) was the variable you described above their independent variable, their dependent variable, or a controlled variable? d) what is a confounding variable? what is a potential confound in this study?

For which rational expression is -2 an excluded value of x