Researchers at the National Cancer Institute released the results of a study that examined the effect of exposing dogs to weed-killing herbicides. Let p1 = percentage of unexposed dogs that developed lymphoma cancer and p2 = percentage of exposed dogs that developed lymphoma cancer. The 90% confidence interval for p1- p2 is (-0.484, -0.368). On the basis of this interval, what should we conclude?

Solve this system of equations. 12x − 18y = 27 4x − 6y = 10

If f(x) = 6x – 4, what is f(x) when x = 8? a2 b16 c44 d52

Asystem of linear equations with more equations than unknowns is sometimes called an overdetermined system. can such a system be consistent? illustrate your answer with a specific system of three equations in two unknowns. choose the correct answer below. a. yes, overdetermined systems can be consistent. for example, the system of equations below is consistent because it has the solution nothing. (type an ordered pair.) x 1 equals 2 comma x 2 equals 4 comma x 1 plus x 2 equals 6 b. no, overdetermined systems cannot be consistent because there are fewer free variables than equations. for example, the system of equations below has no solution. x 1 equals 2 comma x 2 equals 4 comma x 1 plus x 2 equals 12 c. yes, overdetermined systems can be consistent. for example, the system of equations below is consistent because it has the solution nothing. (type an ordered pair.) x 1 equals 2 comma x 2 equals 4 comma x 1 plus x 2 equals 8 d. no, overdetermined systems cannot be consistent because there are no free variables. for example, the system of equations below has no solution. x 1 equals 2 comma x 2 equals 4 comma x 1 plus x 2 equals 24