1. simplify by factoring
Type an exact answer, using radicals as needed
Solution:
2. The formula r=2 can be used to approximate the speed r, in miles per hour, of a car that has left skid marks of length L, in feet. How far will a car skid at 50 MPH?
The car will skid _125__ feet
3. subtract. Simplify by collecting like radical terms if possible.
Simplify your answer. Type an exact answer using radicals as needed.
Solution:
4. Multiply
Type an exact answer, using radicals as needed.
Solution:
5. Add. Simplify by collecting like radical terms, if possible. Assume that all expressions under radicals represent non-negative numbers.
Simplify your answer. Type an exact answer, using radicals as needed.
Solution:
6. Rewrite with rational exponents
Simplify your answer
Solution:
7. Solve
The solution is x= _120_
Simplify your answer. Type an integer or fraction. Use a comma to spate answers as needed. Type N if the solution is not a real number.
8. Mutliply
Simplify your answer. Type an exact answer, using radicals as needed.
Solution: 73
9. Multiply
Solution: 7
10. add. Simplify by collecting like radical terms if possible, assuming that all expressions under radicals represent nonnegative numbers.
Simplify your answer. Type an exact answer, using radicals as needed.
Solution:
11. Find the following. Assume that x can represent any real number. Use absolute value notation when necessary.
Solution: |x-7|
12. Divide. Then simplify by taking roots, if possible. Assume all expressions under radicals represent positive numbers.
simplify your answer. Type an exact answer, using radicals as needed.
Solution:
13. solve.
The solution is y = _58__
Simplify your answer. Type an integer or a fraction. Use a comma to separate answers as needed. Type N if the solution is not a real number.
14. simplify
Solution: -3x
15. use rational exponents to simplify
Choose the simplified expression below.
Solution: d
16. Multiply and simplify by factoring
Type an exact answer using radicals as needed.
Solution:
17. Multiply
Type an exact answer using radicals as needed.
Solution:
18. use rational exponents to write as a single radical expression
Choose the correct expression
Solution: a
19. simplify by taking roots of the numerator and the denominator
Type an exact answer, using radicals as needed
Solution:
20. what does it mean to refer to a 20-inch TV set or a 25-in TV set? Such units refer to the diagonal of the screen. A 20-in TV set also has a width of 16 inches. What is its height?
Solution: 12
21. Use the laws of exponents to simplify
Simplify your answer. Type exponential notation with rational exponents.
Solution:
22. Simplify
The solution is _16807_
Simplify your answer. Type an integer or a fraction.
23. Find the following
simplify your answer. Type N if the root is not a real number.
Solution: 5