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April 25, 2015

April 25, 2015

Posted by **Sandy** on Wednesday, February 25, 2009 at 4:57pm.

(One more thing by the way you need this few prefixes)

Tera= 10 to the 12th power

Giga= 10 to the 9th power

Mega= 10 to the 6th power

Kilo= 10 to the 3rd power

Pico= 10 to the -12th power

Nano= 10 to the -9th power

Micro= 10 to the -6th power

Milli= 10 to the -3rd power

1. 4 Megahertz

Answer: 4*10 (To the 6th power)

Which equals 4000000

2. 82 Kilobytes

Answer: 82*10 (to the 3rd power)

Which equals 82000

3. 2.3 Micrograms

Answer: .0000023

Express each number in scientific notation

1. 24000

Answer: 2.4*10 (to the 3rd power)

2. 25000000

Answer: 2.5* 10 (to the 6th power)

3. 0.08

Answer: 8*10 (to the -2nd power)

4. 15.9

Answer: 5.9*10 (to the -1st power)

5. 1000000

Answer: 1.0*10 (to the 6th power)

6. 0.0000946

Answer: 9.46*10 (to the 4th power)

Evaluate each expression. Express each result in scientific notation and standard form.

1. (4 * 10(to the 2nd power)(1.5 * 10(to the 6th power)

Answer: 6*10(to the 8th power)

2. (7.8 * 10(to the -6 power)(1* 10(to the -2 power)

Answer: 8.8*10(to the -8 power)

Evaluate each expression. Express each result in scientific and standard notation.

1. 8* 10(to the 2nd power)

--------------------------

2* 10(to the -3rd power)

Answer: 800000

2. Find the product of (1.2 * 10(to the 5th power) and (5 * 10(to the -4th power) mentally.

Answer: 60

3. The mass of an orchid seed is 3.5 * 10 (to the -6th power) grams. Express 3.5 * 10(to the -6th power)

Answer: 0.0000035

4. Engineering notation is similar to scientific notation. However, in engineering notaioin, the powers of ten are always mulitiples of 3, such as 10(to the 3rd power), 10(to the 6th power), 10(to the -9th power), and 10 ( to the -12th power. For example: 240000 is expressed as 240 * 10(to the 3rd power). Express 15000 ohms in scientific notation and engineering notation.

Answer: SN: 1.5 * 10(to the 4th power)

EN: 1.5* 10(to the 3rd power)

5a.

32 * 10(to the fifth power)

Answer: 3200000

5B

284 * 10(to the third power)

Answer: 284000

5C

0.76* 10(to the -2 power)

Answer: 0.0076

5D

0.09 * 10(to the -3rd power)

Answer: 0.0009

- Math/Standard and scientific notation -
**Damon**, Wednesday, February 25, 2009 at 5:10pm4. 15.9

Answer: 5.9*10 (to the -1st power)

I think

1.59 * 10^1

- Math/Standard and scientific notation -
**Damon**, Wednesday, February 25, 2009 at 5:11pm6. 0.0000946

Answer: 9.46*10 (to the 4th power)

I think

9.46*10^-5

- Math/Standard and scientific notation -
**Damon**, Wednesday, February 25, 2009 at 5:13pm2. (7.8 * 10(to the -6 power)(1* 10(to the -2 power)

Answer: 8.8*10(to the -8 power)

I think

7.8 * 10^-8

- Math/Standard and scientific notation -
**bobpursley**, Wednesday, February 25, 2009 at 5:15pmOn the engineering notation, you did not do them to powers of three.

Take 5c for example: 7.6*10^-3

There is another way to express powers, often used on ascii keyboards, or else where powers are difficult.

1.4*10^5 would be written as 1.4E5. In older times it was 1.4Exp5, and you see some older calculators around with an Exp or E key. This notation cameabout in the early days of IBM computers (and Fortran Language).

- Math/Standard and scientific notation -
**Damon**, Wednesday, February 25, 2009 at 5:15pm1. 8* 10(to the 2nd power)

--------------------------

2* 10(to the -3rd power)

Answer: 800000

.9*10^5 = 9 *10^4 = 90,000

- Standard and scientific notation -
**amal**, Wednesday, December 15, 2010 at 3:52pm7.8*1o ^5 in standard notation

- Mona shores MATH! -
**Keyaria**, Wednesday, December 15, 2010 at 8:30pm78

- Math/Standard and scientific notation -
**Hawa**, Thursday, October 23, 2014 at 8:51pm780,000