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

Asmall (but heavy) particle placed in a glass of water will follow a zigzag motion because the particle will bounce off of the water molecules it meets. this is called brownian motion. a physicist simulates this on a computer, by varying the distance a particle can travel (called the mean free length), on average, before it collides with a water molecule and assigning the change in motion to be one of 8 directions, each with a similar probability. by running the simulated particle (with the same mean free length) many times she determines that it should take 15 seconds, on average, for the particle to fall to the bottom, with a standard deviation of 1.5 seconds. next she lets a real particle fall through a glass of water and finds that it took 18 seconds. what does she conclude, and why?

What are the soultion(s) to the quadratic equation 40- x^2=0

You are a clerk at convenience store. a customer owes 11.69 for a bag of potatoes chips. she gives you a five dollar bill. how much change should the customer receive?