PLEASE HELP!!!
CAN U ANSWER THESE THREE QUESTIONS!!!!

54. If ab = a? – b3, then what is the value of 3-2?

41. A bag contains 13 red marbles, 12 green marbles and 5 blue marbles. If you mix up the
marbles and pull one out at random, what is the probability that it will be blue? (Answer,
of course, as a fraction in lowest terms.)

48. The 14 letters in the words RHYMING COUPLET are written on separate cards and put
into a hat to be shuffled. You draw out two cards at random. What is the probability that
they show the same letter?

Question

contestada

Respuesta :

abidemiokin abidemiokin · Answer 1 · 2022-03-22T12:49:00+01:00

The probability of selecting blue is 1/6

There are no repeated letters, hence the probability that

they show the same letter is 0

Probability is the likelihood or chance that an event will occur, Mathematically;

Probability = Expected/Total

54) Given the expression a*b = a^3 – b^3

To calculate 3 * -2

3* -2 = 3^3 - (-2)^3

3* -2 = 27 - 8

3* -2 = 19

Hence the value of 3* -2 is 19

41) From the quation

Total outcome = 13 + 12 + 5

Total outcome = 30 marbles

Pr(picking blue) = 5/30 = 1/6

Hence the probability of selecting blue is 1/6

42) Since there are 14 letters, hence total outcome = 14

Pr(drawing out same letter ) = 0/14 = 0

Since there are no repeated letters, hence the probability that

they show the same letter is 0

Learn more on probability here: https://brainly.com/question/24756209