A dairy produces milk with an average of 18.24 grams of fat in each quart. The dairy supervisor hypothesizes that skinny cows will produce milk with less fat. After 26 quarts of milk are randomly selected from 26 different skinny cows, the fat content is measured with a resulting average of 17.98 grams per quart and a standard deviation of 1.16 grams per quart. At the a = .01 significance level, test the supervisor's hypothesis.

answer: i think you should do the math and pay attention in class : )

step-by-step explanation:

that is truly what   think but if i get the answer i will

let x and 400 - x be the two numbers.  

==> 0.80x + 0.85(400 - x) = 400 - 68 from the statement of the problem.  

< ==> 0.80x + 0.85(400 - x) = 400 - 68  

==> 340 - 0.05x = 332  

< ==> -0.05x = -8 ==> x = 160, the first number ==> 400 - x = 240, the second number.

answer: they are supplementary angles

step-by-step explanation: 161+19=180. supplementary angles equal 180 degrees