Name
Date
Class
Practice C
LESSON
11-5 Solving Radical Equations
Solve each equation. Check your answer. All variables represent
nonnegative numbers.
3. 3
x2
6. x 5 7
13
2. 9x 9
39
5.
1.
x
4.
x
5 1
x
8. ____
2
16
7. 3x 6
13. x 1 3x
14. 10 x x 2
16. 2x 2 2x 5
17. x 8 x 4
19. x 2 6x 4
x 6
3
9. ____
5
x 1 10
_______
11. 2
10. 0.83x 4.8
x
20. x 7 x 5
3x 4 4
_________
12. 2
7
15.
2
3x 2 __
2x ___2 0
11
18. 2x 15 x 2
21. 12 3 x 9
22. The surface area of a cone can be found using the formula
2
2
2
2
S r r r h . If the surface area of a cone is 100 in
and its radius is 3 in., what is the cone’s height? Use 3.14 for
and round your answer to the nearest hundredth.
23. Solve
{
3 x 4 y 71
.
3 x 2 y5
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Holt Algebra 1