Simplify the radical expression.
√7+3√7
Answer Choices
2 √7
4 √14
4 √7
2 √14
Simplify the radical expression.
3 √5+6√45
Answer Choices
9 √50
21 √10
6 √96
21 √5
Simplify the radical expression.
(3+√6)(3-√6)
Answer Choices
-27
3
9+6√6
15+6√6
What is domain of the function?
y= √3x+3
Answer Choices
x ≤ -1
x > 1
x ≥ -1
x < 1
Simplify the rational expression by rationalizing the denominator.
√15 over √6x
Answer Choices
√30x over 2x
√10x over 2x
√15x over x
√2x over x
Find the mean, median, and mode of the data set. Round to the nearest tenth.
7,5,4,2,1,1,2,3,5,4,5
Answer choices
Mean = 3.5 median = 4 mode = 5
Mean = 3.25 median = 4 mode = 5
Mean = 3.5 median = 5 mode = 4
Mean = 3.25 median = 5 mode = 4
1. 4√7
2. 21√5
3. 9
4. x ≥ -1
5. √10x/2x
6. Mean = 3.3, Median = 4, Mode = 5 (rounded to nearest tenth)