Answer:the population is threaded rods produced at the factory that week the sample is the 40 threaded rods selected
Step-by-step explanation:
The x has an exponent of 2. the exponent of 2 means x squared, which is x•x. this isn't the same as x+x, because x+x=2x whereas x•x=x squared.
Answer:
9x+7y+13
Step-by-step explanation:
add all the x's, y's, and no exponents together
Answer:
Yes, there is a proportional relationship.
Step-by-step explanation:
I can't put a graph in here unfortunately.