Given: a is an angle in the second quadrant, csc a= 25/7; B is an angle in the first quadrant, cos B= √2/2
The value of tan (a-b) =
Answer choices:
-31/17
29/17
15/17
-3/17

Lisa has three classes that each last 50 minutes. what is the total number of minutes of the three classes

He ! a group of farmers planned to clean 80 acres of wheat per day to finish the work on schedule. right before the work started, they received a new piece of machinery that them clean 10 more acres per day than originally planned. as a result of increased productivity in the last day before the deadline they only had to clean 30 acres. how many acres of wheat did the group of farmers have to clean?

How many heads would you expect if you flipped a coin twice? first, fill in the table below with the correct probabilities. hint: the sample space for flipping a coin twice is {hh, ht, th, tt}. a = b = c =