Lola tossed a coin twice. She made a tree diagram to show the possible outcomes. Which tree diagram shows the sample
space for two tosses of a coin?

Evaluate the expression for the given value of the variable. ∣-4b-8∣+∣-1-b^2 ∣+2b^3 ; b=-2

Neoli is a nurse who works each day from 8: 00 am to 4: 00 pm at the blood collection centre. she takes 45 minutes for her lunch break. on average, it takes neoli 15 minutes to collect each sample and record the patient's details. on average, how many patients can neoli see each day?

If cos(2x) = tan^2(y), show that cos(2y) = tan^2(x).