| |
| |
1. |
If Julie has x strawberries in one sack and four fewer strawberries in another sack, write an expression for how many strawberries are in the second sack. |
| |
|
A. |
x + 4 |
B. |
4 - x |
| |
|
C. |
x - 4 |
D. |
4 + x |
| |
|
Hint |
|
| |
2. |
Write 2,564,000 in scientific notation. |
| |
|
A. |
2.564×105 |
B. |
2.564×106 |
| |
|
C. |
25.64×105 |
D. |
2,564×103 |
| |
|
Hint |
|
| |
3. |
Write 120,000,000 in scientific notation. |
| |
|
A. |
1.2×108 |
B. |
1.2×109 |
| |
|
C. |
12×107 |
D. |
0.12×109 |
| |
|
Hint |
|
| |
4. |
Name the ordered pair for point A. |
| |
|
 |
| |
|
A. |
(-3, 4) |
B. |
(3, -4) |
| |
|
C. |
(-4, -3) |
D. |
(-3, -4) |
| |
|
Hint |
|
| |
5. |
VideoMart Electronics sold 150 DVD players and VCRs during their last weekend sale for a total of $21,050. The DVD players sold for $175 and the VCRs sold for $95. How many VCRs were sold? |
| |
|
A. |
85 |
B. |
95 |
| |
|
C. |
65 |
D. |
75 |
| |
|
Hint |
|
| |
6. |
Express 7-3 using positive exponents. |
| |
|
A. |
 |
B. |
 |
| |
|
C. |
 |
D. |
(-7)3 |
| |
|
Hint |
|
| |
7. |
Find 53 · 57 |
| |
|
A. |
510 |
B. |
2510 |
| |
|
C. |
54 |
D. |
25-4 |
| |
|
Hint |
|
| |
8. |
Using the formula for the area of a trapezoid  , find A
if h = 7 cm, b1 = 3 cm, and b2 = 5 cm. |
| |
|
A. |
7.5 cm2 |
B. |
28 cm2 |
| |
|
C. |
25 cm2 |
D. |
18 cm2 |
| |
|
Hint |
|
| |
9. |
How many squares do you add from Stage s to Stage s + 1 in the pattern below? |
| |
|
 |
| |
|
A. |
s squares |
B. |
0 squares |
| |
|
C. |
s + 1 squares |
D. |
s + 2 squares |
| |
|
Hint |
|
| |
10. |
Without building it, predict the number of blocks in Stage 7. |
| |
|
 |
| |
|
A. |
81 |
B. |
49 |
| |
|
C. |
100 |
D. |
64 |
| |
|
Hint |
|
| |
11. |
Rewrite 123 × 73 using a single base. |
| |
|
A. |
193 |
B. |
843 |
| |
|
C. |
849 |
D. |
199 |
| |
|
Hint |
|
| |
12. |
Rewrite a4 × b4 using a single base. |
| |
|
A. |
a4b4 |
B. |
ab8 |
| |
|
C. |
ab4 |
D. |
ab16 |
| |
|
Hint |
|
| |
13. |
Which expression describes this pattern of numbers:
4, 16, 64, 256, 1,024. |
| |
|
A. |
4x |
B. |
4x |
| |
|
C. |
x4 |
D. |
4 + x |
| |
|
Hint |
|
| |
14. |
Use your calculator to evaluate the expression.
(5.9 × 108) × (2.4 × 109) |
| |
|
A. |
1.416 × 1017 |
B. |
1.416 × 1016 |
| |
|
C. |
1.416 × 1018 |
D. |
1.416 × 1012 |
| |
|
Hint |
|
| |
15. |
Evaluate (–4) 3. |
| |
|
A. |
–12 |
B. |
–64 |
| |
|
C. |
12 |
D. |
64 |
| |
|
Hint |
|
| |
16. |
Use the differences method to analyze the pattern in the table. Find the two missing outputs. |
| |
|
 |
| |
|
A. |
89, 97 |
B. |
83, 91 |
| |
|
C. |
86, 94 |
D. |
90, 98 |
| |
|
Hint |
|
| |
17. |
Using n, find the expression for this Think of a Number trick.
Think of a number.
Multiply by 2.
Add 4.
Divide by 2.
Add 6.
Subtract the number you started with. |
| |
|
A. |
 |
| |
|
B. |
 |
| |
|
C. |
 |
| |
|
D. |
 |
| |
|
Hint |
|
| |
18. |
Name a similarity and a difference among the three graphs below.
7x + y + 8 = 0
–7x + y + 8 = 0
–3x – y – 8 = 0 |
| |
|
A. |
The graphs have the same slope and y-intercept. |
| |
|
B. |
None of the graphs have the same slope nor the same y-intercept. |
| |
|
C. |
The graphs have the same y-intercept, but different slopes. |
| |
|
D. |
The graphs have the same slope, but different y-intercepts. |
| |
|
Hint |
|
| |
19. |
The triangles below are similar. Find y. |
| |
|
 |
| |
|
A. |
110° |
B. |
55° |
| |
|
C. |
90° |
D. |
35° |
| |
|
Hint |
|
| |
20. |
Find the perimeter of this triangle after it has been scaled by 3. |
| |
|
 |
| |
|
A. |
54 km |
B. |
18 km |
| |
|
C. |
40 km |
D. |
21 km |
| |
|
Hint |
|
|
|