math
mexmum
assignment_math.docxPlease remember to show all of your work.
1. Answer each of the questions below:
a) Write the number in scientific notation: 42,576,342
b) Write the number in scientific notation: 0.0519
2) Simplify. Write the answer using positive exponents only.
3) Simplify. Write the answer using positive exponents only.
4) Simplify. Write the answer using positive exponents only.
5) Perform the indicated operations and simplify:
6) Perform the indicated operations and simplify:
7) Perform the indicated operations and simplify your answer:
8) Factor completely and show the check by re-multiplication. If the polynomial is not factorable, write “prime.”
9) Solve the equation by the method of factoring:
10) Solve the equation by the method of factoring:
69
15
56
35
xy
xy
3
7
5
5
2
y
x
-
-
æö
ç÷
ç÷
èø
123155
3162
4518
5649
xyxy
xyxy
¸
(
)
(
)
(
)
222
125922512
xxx
-+---
(
)
(
)
22
7314191214
xxxx
---+-
(
)
(
)
2
458311
xxx
--+
32
61110
xxx
--
2
9720
xx
+-=
32
568
xxx
-=
5
7.05110
´
3
4.00110
-
´
210
3126
--
--
