Algebra 1b radical expressions & data analysis
1. Simplify 2/√5
A. 2/√5
B. √10
C. √10/5
D. 2√10/5 *** My answer
2. Simplify -11√112
A. -44√7
B. -176 √7
C. -27 √7
D. 4√7 *** My answer
3. Simplify 17√17 -9 √17
A. 8 *** My answer
B. 8√17
C. 26√17
D. 8√0
4. Simplify 6/ √3 + 2
A. 4/ √3
B. 12 - 6 √3 *** my answer
C. √3 - 2
D. 3
5. What is the domain of the function y = 3√6x + 42 ?
A. X≥0
B. X ≤7 *** my answer
C. X ≥ -6
D. X ≥ -7
6. What are the domain and range of the function y = 2 √3x + 4 - 5 ?
A. X ≥ -4/3 ; y ≥ -5 *** my answer
B. X ≥ 4/3 ; y ≥ -5
C. X ≤ -4/3 ; y ≤ -5
D. X ≥ -4/3 ; y ≥5
7. When will the dependent variable in the equation y = √x+4 - 3 equal or exceed 4 ?
A. X ≥ -0.17
B. X ≥ 45
C. X ≥ 48 *** my answer
D. X ≥ 53
8. Simplify the radical expression. Show all of the steps.
√363 - 3√27