Chem Math 2

Express the following in scientific notation:
.000457

• 457 x 10⁶
• 457 x 10^-6
• 4.57 x10⁴
• 4.57 x 10^-4

If the exponent is a negative number the original number was...

• a really large number.

• a really small number.

Tags

CCSS.8.EE.A.3

Perform the following calculations.
Express your answer in scientific notation.
 $\frac{7.15\ x\ 10^3}{2.5\ x\ 10^{-3}}$  

•  $2.86\ x\ 10^{-6}$  

•  $28.6\ x\ 10^7$  

•  $2.86\ x\ 10^6$  

Perform the following calculations.

Express your answer in scientific notation.

(5 x 10⁴)(2 x 10²)

• 10 x 10⁸

• 3.0 x 10⁸

• 1.0 x 10⁷

You know 1000 mg = 1 g.  Convert 2.5 grams into milligrams.

• 25 mg
• 25,000 mg
• 250 mg
• 2500 mg

Tags

CCSS.6.RP.A.3D

Convert 40 ounces to pounds. (16oz = 1lb)

• 2.5 pounds

• .4 pounds

• 2/5 pounds

• 5 pounds

Tags

CCSS.6.RP.A.3D

The Olympic record for the high jump is just over 2.6 yards. What is that distance in feet?  (3 ft=1 yd)

• 0.867 ft
• 7.8 ft
• 8.07 ft
• 8.27 ft

Tags

CCSS.6.RP.A.3D

Three ounces of cinnamon cost $2.40. If there are 16 ounces in 1 pound, how much does cinnamon cost per pound? Ignore significant figures

• $12.80

• $21.20

• $38.40

• $45.20

Tags

CCSS.6.RP.A.3B

The Independent Variable is represented on which Axis?

• A

• X

• B

• Y

What do we put at the top of a graph?

• X axis

• data table

• title

• nothing