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Unit 2 Real Numbers Post Test
Contribuição de: Gifford
1.  Find the decimal form of the fraction -3/8.
2.  Give the fraction equivalent for 0.34
 in simplified form.
3.  Give the fraction form of the repeating decimal
0.242424... in simplified form.
4.  Choose the best answer for the simplified
fraction form of 0.224.
224/1000
224/100
28/125
24/125
5.  Write the following decimal as a
simplified mixed number:  -3.48
6.  Give the decimal form of the fraction 7/32. 
Round to the nearest thousandth.
7.  Write the following product as a  power:
(-5)(-5)(-5)(-5)(-5)(-5)(-5).
8.  Write m6 in expanded form.
9.  Simplify the following monomial:
      (3x4y)3
3x7y3
9x12y3
6x4y3
27x12y3
10.  Match the correct fraction with the
equivalent monomial.
3-2
1/9
?
(1/6)-3
216
?
(1/3)-2
9
?
(-1/216)
?
(-6)-3
11.  Simplify the following expression  (use the ^
for the power like x ^ 3 is x3):
     (5xy3)(2xy4)0
12.  Write the following number in scientific
notation(don't use spaces, use x for the times
sign and ^ for the power):  123,000,000
13.  Which expression is 0.00000467 in
scientific notation?
4.67 x 106
467 x 106
4.67 x 10-6
467 x 10-6
14.  Simplify the following making sure your
answer is in proper scientific notation:
              (3.2x105)(1.1x103)
15.  Simplify the following making sure your
answer is in proper scientific notation:
                   1.8x107
                          2x104
16.  A globular protein cell is approximately
4x10-9 meters in length.  The size of an E-coli
bacterium cell is approximately 2x10-6 meters
in length.  How many times bigger is the E-coli
bacterium than the globular protein?
500 times
5000 times
2 times
50 times
17.  Click and drag the roots to their place on
the number line below.
√11
?
3√170
?
3√620
?
√155
?
18.  Estimate √72 as a mixed number in simplest
form.
19.  Which two integers is the cube root of -126
in between?
-10 and -11
-3 and -4
10 and 11
-5 and -6
20.  Express 0.0034 as a fraction in simplest form
and in scientific notation.  Then on your piece of
paper, explain the steps you took for both answers.
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