Rich wrote this expression to describe the total distance he was going to bike in two days.

which situation could be described by this expression?

a.
rich wasn't sure how far he would bike on the first day. he would bike 7 fewer miles on the second day.

b.
rich wasn't sure how far he would bike on the first day. he would bike 7 miles the second day.

c.
rich wasn't sure how far he would bike on the first day. he would bike 7 times farther the second day.

d.
rich wasn't sure how far he would bike on the first day. he would bike the same distance for 7 days

1- is the product of two rational numbers irrational or rational? first, make a hypothesis by multiplying two rational numbers. then, use variables such as x=a/b and y=c/d and the closure property of integers to prove your hypothesis. 2- what do you think the product of a nonzero rational number and an irrational number is? is it rational or irrational? make use of variables, the closure property of integers, and possibly a proof by contradiction to prove your hypothesis. 3- why do we have to specify that the rational number must be nonzero when we determine what the product of a nonzero rational number and an irrational number is? if the rational number were 0, would it give us the same result we found in part b?

The table below represents a linear function f(x) and the equation represents a function g(x): x f(x) −1 −5 0 −1 1 3 g(x) g(x) = 2x − 7 part a: write a sentence to compare the slope of the two functions and show the steps you used to determine the slope of f(x) and g(x). (6 points) part b: which function has a greater y-intercept? justify your answer. (4 points)

Evaluate the discriminant of each equation. tell how many solutions each equation has and whether the solutions are real or imaginary. x^2 - 4x - 5 = 0