Appendices.pdf - NAACP Legal Defense and Educational Fund, Inc.
Appendices.pdf - NAACP Legal Defense and Educational Fund, Inc.
Appendices.pdf - NAACP Legal Defense and Educational Fund, Inc.
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M83-025B<br />
Specific Strategies u u u <br />
Mathematics<br />
Example 6 Example 8<br />
R<br />
3 cm<br />
The length of the border between the<br />
S<br />
United States <strong>and</strong> Canada is approximately<br />
Thus: A __<br />
1 2 (4)(3 6) __ 1 2 (4)(9) 18 sq cm G. 8<br />
H. 12<br />
2.5 10 6 meters. What is this length in<br />
4 cm 5 cm<br />
kilometers?<br />
A. 250 km<br />
B. 2,500 km<br />
Q<br />
T<br />
C. 25,000 km<br />
6 cm<br />
D. 2,500,000 km<br />
What is the area of trapezoid QRST?<br />
E. 2,500,000,000 km<br />
A. 2 sq cm<br />
In Example 8, start by converting 2.5 10 6 from<br />
B. 18 sq cm<br />
scientific notation to st<strong>and</strong>ard form:<br />
C. 24 sq cm<br />
D. 72 sq cm<br />
2.5 10 6 2,500,000 meters<br />
E. 360 sq cm<br />
To change from meters to kilometers, divide by 1,000:<br />
2,500,000 1,000 2,500 km<br />
In Example 6, use the formula for the area of a<br />
trapezoid:<br />
Area __ 1 2 • height • (sum of the bases)<br />
Example 9<br />
From the figure, we know that the height of QRST If the mean of 6, 8, 10, <strong>and</strong> x is 8, what is x?<br />
is 4 cm <strong>and</strong> that one base is 6 cm, while the other<br />
base is 3 cm.<br />
F. 4<br />
J. 16 16<br />
Example 7<br />
K. 32<br />
Kendra traveled on a train for 8 hours<br />
<strong>and</strong> 12 minutes at an average speed of<br />
110 kilometers per hour. How far did she travel?<br />
F. 120 km<br />
G. 170 km<br />
H. 891 km<br />
J. 892 km<br />
K. 902 km<br />
In Example 9, set up an equation to calculate the<br />
mean <strong>and</strong> solve for x:<br />
_______________<br />
6 8 10 x 8<br />
4<br />
24 x 32<br />
x 8<br />
In Example 7, first convert 12 minutes into a<br />
fraction of an hour <strong>and</strong> add that to the 8 hours:<br />
___ 12<br />
60 1 __ hour 8 hours<br />
5<br />
So Kendra’s total travel time was 8 __ 1 hours. Multiply<br />
5<br />
her travel time by 110 kilometers per hour to<br />
calculate the distance she traveled:<br />
8 __ 1 5 • 110 ___ 41<br />
5 • 110 902 km<br />
Taking the Sample Tests<br />
Now you are ready to try sample test Form A. Begin<br />
by carefully reading the Directions on pages 28 <strong>and</strong><br />
29 <strong>and</strong> filling out side 1 of the Answer Sheet on page<br />
30. For Form A, use side 2 of the Answer Sheet (page<br />
31). When you are ready for Form B, use the Answer<br />
Sheet on page 69. You may tear out pages 31 <strong>and</strong> 69<br />
to make it easier to mark your answers.<br />
27