Luttrell 2012
112
Chapter 7 Test, continued
7. Simplify into scientific notation
A. 0.000 000 000 034
B. 3×10
8
+ 4.7×10
9
8. Solve for x:
a. 4
x
= 64
B. (125)
⅔
= x
2
C.
x
+ =
8
6
9. Short answer:
A. How can you tell if a radical (square root, cube root...) is a rational number?
B. Simplify: 4√3 + (3 - √3)
10. Simplify:
A.
18
6
B. 3 27 6
Bonus: (3pt) Let 10
101
-1 be written as an integer in standard form. What is the sum of the digits?
(2pt) Suppose N
1982
= 1982
1982
. If N ≠1982, what is the real value of N?
5
5
10
5
0