Units 1, 2 and 3 review for benchmark

Change from standard form to scientific notation: 0.004078

• 4.078  x  10^-3
• 4.078  x  10³
• 40.78  x  10^-4
• .4078  x  10^-2

3- Which number is perfect square?

• a) 36

• b) 39

• c) 89

• d) 11

6 + x/3 ≤ 7

• x ≥ 39
• x ≤ 39
• x ≥ 3
• x ≤ 3

Change from standard form to scientific notation:  0.000398

• 39.8  x  10^-5
• 3.98  x  10^-5
• 3.98  x  10^-4
• 39.8  x  10^-6

11²

(a)  

13²

(a)  

1- Which number is a perfect square?

• a) 32

• b) 25

• c) 22

• D) 24

• 36

• 6

• 18

• 72

Between which two whole numbers does the √71 fall?

• 10 and 11

• 9 and 10

• 8 and 9

• 7 and 8

Change from standard form to scientific notation: 12,000,000

• 12.0  x  10⁷
• 0.12  x  10⁷
• 1.2  x  10⁶
• 1.2  x  10⁷