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```					Multiple Choice

For questions 1–10, simplify the expression.

1.

–(6)–1

(1 point)

       6





       –

2.
7a–5b3 (1 point)

       7ab–15




       7a5b–3

3.

12–3 · 1210 · 120

(1 point)

       367
       1,7287
       1
       127
4.
2k8 · 3k3 (1 point)

         5k24
         5k11
         6k11
         6k24

5.

–4x3 · 2y–2 · 5y5 · x–8

(1 point)









6.

(t–2)6

(1 point)



t12







7.
(–h4)5 (1 point)

         –h9


h1



h20

         –h20

8.

(1 point)








9.

(1 point)








10.
(1 point)




     m18
     –m216

11.
Write the number in scientific notation.

8,670,000,000 (1 point)

     0.867 × 1010
     86.7 × 1008
     8.67 × 109
     8.67 × 10

For questions 12–13, simplify the expression. Write the answer using scientific notation.
12.
8(8.8 × 1012) (1 point)

     70.4 × 1012
     70.4 × 1024
     7.04 × 1013
     1.68 × 1013

13.
(0.4 × 10–6)(0.7 × 10–2) (1 point)

     2.8 × 10–9
     2.8 × 10–8
     2.8 × 10–7
     0.28 × 10–9

14.
Last year, a large trucking company delivered 8.0 × 105 tons of goods with an average value of
\$30,000 per ton. What is the total value of the goods delivered? Write the answer in scientific
notation. (1 point)

       2.4 × 109
       2.4 × 1012
       2.4 × 1011
       2.4 × 1010

15.
Which number is NOT written in scientific notation? (1 point)

       3 × 10–8
       6.7 × 103
       8.7 × 10–5
       25.67 × 10–2

16.
Which list shows the numbers in order from least to greatest? (1 point)

       5.4 × 104, 5.4 × 103, 4.5 × 104
       5.4 × 103, 4.5 × 104, 5.4 × 104
       5.4 × 103, 5.4 × 104, 4.5 × 104
       4.5 × 104, 5.4 × 103, 5.4 × 104

17.
Evaluate the function rule for the given value.

y = 8 · 5x for x = –3

(1 point)

       –120






18.
Evaluate 9x2y–2 for x = –3 and y = 2. (1 point)

     324

     20
     9(–6)0



19.

Match the table with the function that models the data.

(1 point)

     y = x4
     y = 4x
     y = 4x

Show your work or the intermediate steps for full credit.

When submitting an answer in the form of an exponent, use a caret (^) to indicate the power. For
example, 53 would be written as 5^3.
When submitting an answer in the form of a fraction, use a forward slash (/) to separate the
numerator and denominator. For example, one-half would be written as 1/2.

20.
Simplify the expression.

(–2.7)0

(2 points)

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 views: 55 posted: 8/24/2010 language: English pages: 7