In the diagram, line y is parallel to line ef . lourdes used the diagram to find that m1 = 105°.
what mistake did lourdes make in finding m1?
a. lourdes found 180º – (70º + m2).
b. lourdes found m1 = me.
c. lourdes found md + mf.
d. lourdes found 180º – (md + mf

Fran would like to estimate the mean amount of time it takes people in her town to travel to work. the town's population is 150,000 and about 90,000 of those are working adults. which statements are true? select each correct answer. there is no way to infer the value of the mean. she must collect data for all 90,000 working adults and calculate the mean. a larger sample of working adults will provide a better estimate of the true mean than a smaller sample. the population of working adults is too large for using a sample to estimate the mean of the entire group. if she takes a random sample of the population of working adults in her town, the mean for that group is likely close to the mean for the entire group.

Solutions for 2x+7 less than or equal to 3x-5

Isabel graphed the following system of equations. 2x – y = 6 y = -3x + 4 she came up with the solution (2,-2). what were the 3 steps she did to get that solution? (make sure they are in the correct order)