Revision: Indices

When a number is raised to a zero index, the result is ___.

• the number itself

• zero

• one

• base

To simplify negative index, find it’s _____ and change the negative index to positive.

• reciprocal

• inverse

• factor

• base

 Which of the following is not true about the laws of indices.

• To multiply expressions having the same base, add their indices and copy the common base

• To divide expressions having the same base, multiply the indices and copy the common base.

• To raise power to a power, multiply the indices.

• To raise product to the same index, distribute the index to its factors

A number expressed in the form A x 10ⁿ, where 1≤ A < 10 and n is an integer

• Radical form

• Standard form

• Index form

• Linear form

It is a prefix that means billion or 10⁹.       

• Kilo

• Mega

• Giga

• Tera

 Express 9.8 x 10^-6as  decimals.

• 98 000 000     

• 9 800 000

• 0.0000098

• 0.00000098

  When the calculation of interest is always based on the original principal, then the interest is called ________.

• Amount interest

• Interest rate

• Compound interest

• Simple interest        

When interest is calculated on prior interests accumulated in previous time periods, then the interest is called _______

• Simple interest

• Interest rate

• Compound Interest

• Amount interest

If   4^{2 – 3x} = 512, then x = _____    

• 5/6

• -5/6

• 6/5

• -6/5

The mean distance from the sun to Earth is 9.29 x 10⁷ miles. Jupiter's mean distance from the sun is 4.8388 x 10⁸ miles. What is the difference between these two distances in miles?

• 4.3092 x 10¹

• 3.9098 x 10⁸

• 3.9098 x 10⁷

• 5.7678 x 10⁸