Question

@dan815

Answer 1

Amy is playing a board game and rolls two number cubes. Let A = {the sum of the number cubes is odd}, and let B = {the sum of the number cubes is divisible by 3}. List the outcomes in A ∪ B.

Answer 2

{3, 6, 9, 12}
{1, 3, 5, 7, 9, 11}
{3, 5, 6, 7, 9, 11, 12}
{2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12}

Answer 3

I chose the first one

Answer 4

there are mroe

Answer 5

oh wait hold on let me recheck

Answer 6

just a little thing.... can you check if the answer choices have been correctly listed... as I think non of them are correct

Answer 7

that's correct those are the answers

Answer 8

thanks buddie :)

Answer 9

so the union means to list those in set A and in set B... and only write the common elements once...

Answer 10

can you check my others dan?

Answer 11

the total sums from the number cubes are
2,3,4,5,6,7,8,9,10,11,12
the odd ones from them are
3,5,7,9,11
now we the multiples of 3 are
3,6,9,12

{3,5,7,9,11} U {3,6,9,12}
union means we take everything from both sets, take only 1 of the repeating ones
{3,5,6,7,9,11,12} <----- this is waht u have left

Answer 12

The grades on the last history exam had a mean of 75%. Assume the population of grades on history exams is known to be normally distributed with a standard deviation of 7. What percent of students earn a score between 70% and 82%?

0.6285
0.6101
0.6024
0.5892

I chose B

Answer 13

T_T stop giving me work

Answer 14

I am just cecking if its right dan..............