Question

Write the answer in scientific notation.

(2.3x10^-4)(9.3x10^8)

Answer 1

@Mertsj

Answer 2

@Easyaspi314

Answer 3

@Zale101

Answer 4

when working with scientific notation, we can use some exponential properties,
so we know that the exponent, multiplied would be 8-4=4:
\[(2.3x10^{-4})(9.3x10^{8}) = ((2.3)(9.3))x10^{8-4}\]
our result:
\[21.39x10^{4}\],
let's fix that by doing this:
\[2.139x10^{5}\]

Answer 5

okay so for this equation:
(5.4x10^-5)(1.8x10^-1)

Answer 6

it would be 5.4 times 1.8 and then -5-(-2)

Answer 7

it would be (5.4)(1.8)^-5+(-1)
remember than when we multiply two numbers to a exponent, the exponents sum together.

Answer 8

oh so you add the exponents

Answer 9

yes, In the previous case i put the "-" because it was the sum with a negative number.

Answer 10

so for this prob you dont have to move the decimal place..

Answer 11

i got 9.72x10^-6

Answer 12

if the multiplication is less than 10, then you dont have to move it.

Answer 13

so this one is fine then right?????

Answer 14

totally fine :)