Number Sense and Sets
Let A = {2,4,6,8} and B = {4,8,12}. Give the intersection of A and B.
{4,8}
Solve 5x - 7 = 18.
x = 5
What is the sum of the interior angles of a triangle?
180 degrees
Find the mean of 6,8,10.
8
Give the next term: 4,7,10,13,...
16
|-7| + (-3)²
16
Find the slope of the line passing through (1,2) and (5,10).
Find the measure of each interior angle of a regular hexagon.
120 degrees
Find the median of 3,5,7,9,12.
7
Find the 10th term of 5,9,13,17,...
41
Three-fourths of a number is 27. Find the number.
36
Factor x2 - 9x + 20 completely.
(x - 4)(x - 5)
A regular polygon has an exterior angle measuring 24 degrees. How many sides does it have?
15 sides
A bag contains 4 red balls, 3 blue balls, and 3 green balls. One ball is selected at random. Find the probability that it is not red.
3/5
Find the 7th term of the geometric sequence 3,6,12,24,...
192
In a group of 40 students, 22 joined the Mathematics Club, 17 joined the Science Club, and 8 joined both. How many joined neither club?
9
Solve x + y = 11 and 2x - y = 7. Find x.
A right triangle has legs measuring 9 cm and 12 cm. Find the length of its hypotenuse.
15 cm
The average of five test scores is 84. Four of the scores are 80,86,79,90. Find the fifth score.
85
Find the sum of the first 10 terms of 2,5,8,11...
155
Simplify √72.
6√2
Solve 2/(x-1) = 3/(x+2).
x = 7
Two triangles are similar. A side measuring 8 cm in the smaller triangle corresponds to a side measuring 12 cm in the larger triangle. If another side of the smaller triangle measures 10 cm, find its corresponding side in the larger triangle.
15 cm
Two fair six-sided dice are rolled. Find the probability that their sum is 8.
5/36
In the arithmetic sequence 7,13,19,25,..., which term is 97?
n = 16