Question

HELP NEED ANSWER PLEASE!!!!! 20 ponts!!!!!!

Answer 1

oh! i know this one!

its A!

good luck!

Answer 2

`(2* 10^(-3))* (4* 10^4)=4* 10^1`

Explanation:

We have been given that a mustard seed has a mass about 0.002 gm. A glass jar contains about
`4.3602* 10^4` seeds. We are asked to find the mass of mustard seeds in the jar.

First of all, we will convert the mass of mustard seed in scientific notation.

`0.002=2* 10^(-3)`

To find the mass of seeds in jar, we will multiply number of seeds by mass of one seed.

`\text{Mass of seeds in jar}=2* 10^(-3)* 4.3602* 10^4`

Using exponent property
`a^b\cdot a^c=a^(b+c)`, we will get:

`\text{Mass of seeds in jar}=2* 4.3602* 10^(-3+4)`

`\text{Mass of seeds in jar}=8.7204* 10^(1)`

Therefore, option C is the correct choice.