Athletes prepare for a competition by conditioning, controlling, their diet, and getting adequate sleep. The relationship between the hours of sleep, (x) and the competition score results f(x) is illustrated with a scatter plot. The line that best fits the data can be expressed by the function f(x) = 0.95x + 0.75 where x is the number of hours spent online and f(x) is the score at the competition. What is the meaning of the value 0.95 in the context of the data?

1- 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.2- 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 the first question?

Combine like terms to make a simpler expression 3z+z

Simplify. 4+3/7x-2-2/7x a. 2-5/7x b. 6-1/7x c. 2+1/7x d. 6+5/7x