a. If 1 adult female is randomly selected, find the probability that her pulse rate is less than 76 beats per minute. b. If 25 adult females are randomly selected, find the probability that they have pulse rates with a mean greater than 80 beats per minute. c. Why can the normal distribution be used in part (b), even though the sample size does not exceed 30?

Which of the following quartic functions has x = –1 and x = –2 as its only two real zeroes?

Given that abcd is a rhombus, what is the value of x?

Given: lines a and b are parallel and line c is a transversal. prove: 2 is supplementary to 8 what is the missing reason in the proof? statement reason 1. a || b, is a transv 1. given 2. ∠6 ≅ ∠2 2. ? 3. m∠6 = m∠2 3. def. of congruent 4. ∠6 is supp. to ∠8 4. def. of linear pair 5. ∠2 is supp. to ∠8 5. congruent supplements theorem corresponding angles theorem alternate interior angles theorem vertical angles theorem alternate exterior angles theorem