Question 1

Which shows the expression below in simplified form?

(1.8 × 10^14) + (4.2 × 10^12)

Accepted Answer

2.22 × 10^12

Answer

2.22 X 10^10

Answer

2.22 X 10^8

Answer

222

Question 2

Which shows the expression below simplified?

(6 × 10^4) × 0.00008

Accepted Answer

4.8 × 10^0

Answer

4.8 × 10^-20

Answer

1.4 × 10^-20

Answer

4.8 × 10^-1

Question 3

Visible blue light has a wavelength of about 0.0000475 centimeters.

What is this measurement written in scientific notation?

Accepted Answer

4.75 × 10^-5 centimeters

Answer

4.75 × 10^-4 centimeters

Answer

4.75 × 10^4 centimeters

Answer

4.75 × 10^5 centimeters

Question 4

The display on a calculator screen is shown.  What number does that represent?

Accepted Answer

67,637,000

Answer

6,763,700,000,000

Answer

0.0000000676

Answer

0.0000006764

Question 5

Find an expression equivalent to the one shown below.

13^16 × 13^-3

Accepted Answer

13^13

Answer

13^14

Answer

13^-48

Answer

13^19

Question 6

Simplify.

5^2/5^4

Accepted Answer

1/25

Answer

25

Answer

1/2

Answer

5^2

Question 7

Simplify the following expression.

4^-2/4^4

Accepted Answer

1/4096

Answer

1/4

Answer

4^6

Answer

4096

Question 8

(5^3)^8/5^24

Accepted Answer

1

Answer

0

Answer

1/5^24

Answer

5^24

Question 9

Write the following expression using a single exponent.

(3^4)^2 × 3^7

Accepted Answer

3^15

Answer

15^30

Answer

3^30

Answer

15^15

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