A group of doctors are conducting an experiment to test a new nutritional supplement. They randomly selected 600 subjects, assigning 300 subjects to receive the supplement and 300 subjects to receive a placebo. The doctors are unaware of which subjects are assigned to each
treatment group.
This experiment is
_because_
know which treatment group each subject is in.

The function g(x) is defined as shown. x-1, -2 g(x) = 2x+3, -1 6-x, x23

Tomas is making trail mix using granola and walnuts. he can spend a total of $12 on the ingredients. he buys 3 pounds of granola that costs $2.00 per pound. the walnuts cost $6 per pound. he uses the equation to represent the total cost, where x represents the number of pounds of granola and y represents the number of pounds of walnuts. he solves the equation for y, the number of pounds of walnuts he can buy. answer- b tomas added 6 to both sides of the equation instead of subtracting 6. just took the test

To which sets of numbers does -12 belong? choose all answers that are correct. a) natural numbers b) integers c) real numbers d) irrational numbers