A = {100, 200, 300}
B= {300, 400, 500}
Find A union B.
{100, 200, 300, 400, 500}
100
Your temperature must be more than 100 degrees to stay home sick. Write an inequality.
x>100
100
| x - 2| = 6
x= 8, x= -4
200
U = {2, 4,6,8,10,12}
A= {6,8,10}
A'= ?
A' = {2,4,12}
200
A = {T, U, V, W, X}
B = {V, X, A, B, T}
Find the INTERSECTION of A and B.
{V, X, T}
200
Jim has $100. He wants to save up more than $450 for a new phone. He earns $25 an hour. WRITE then SOLVE an inequality for the amount of hours Jim could work to beat his goal.
100 + 25x >450, x>14
200
| 2x - 5 | = -4
No solution
300
How many subsets will {1,4,7,15} have?
16
300
A= {all of the negative integers and zero}
B= {all of the positive integers}
What is A union B?
{all integers}
300
The quotient of a number and -4 is less than 12. WRITE then SOLVE an inequality.
x/-4 <12, x>-48
300
2| x - 5 | = 10
x=10, x=0
400
U= {all the positive multiples of 1}
B= {all even natural (counting) numbers}
B'=?
{all odd counting numbers}
400
A ={x| x>0, x is a real number}
B= {all positive multiples of 3}
What is the INTERSECTION of A and B?
{all positive multiples of 3}
400
A business person earns $55,000 a year, plus 5% commission on his sales. Their goal is to be $75,000 in earnings this year. Write and solve an INEQUALITY that represents how well they have to do in sales.