5. Assume each variable has a different value. Which relations below are functions?
a. {(a, b),(a, c),(a, d), (a, e) b. {(a, b), (b, b), (c, b), (d, b)}
c. {(a, b), (c, d), (e, f), (g, h) d. {(a, a), (b, c), (C, c), (d, e)}
A choices b and c only
B choices b, c, d only
C choice c only
OD choice a only

You were told that the amount of time lapsed between consecutive trades on the new york stock exchange followed a normal distribution with a mean of 15 seconds. you were also told that the probability that the time lapsed between two consecutive trades to fall between 16 to 17 seconds was 13%. the probability that the time lapsed between two consecutive trades would fall below 13 seconds was 7%. what is the probability that the time lapsed between two consecutive trades will be between 14 and 15 seconds?

How many real-number solutions does the equation have? -4x^2 + 10x + 6 = 0 a. no solutions b. two solutions c. infinitely many solutions d. one solution

Aprojectile is thrown upward so that its distance above the ground after t seconds is given by the function h(t) = -16t2 + 704t. after how many seconds does the projectile take to reach its maximum height?