How do you write #6.3 times 10^-4# in expanded form?

Answer 1

#0.00063#

The way that I think of it is, is that the power is #-4#. Therefore, you need one fewer zeros than that power before your actual number... sorry this isn't making any sense! I'll give examples:

#4*10^-3 -># the power is a #3#, so you need #2# zeros before your number #= 0.004#

#1.7*10^-5 -># the power is a #5#, so you need #4# zeros before your number #= 0.000017#

#8.16*10^-11 -># the power is an #11#, so you need #10# zeros before your number #= 0.0000000000816#

I hope that this makes some sense.

By signing up, you agree to our Terms of Service and Privacy Policy

Answer 2

Eli Assouline

6.3 times 10^-4 in expanded form is 0.00063.

By signing up, you agree to our Terms of Service and Privacy Policy

Answer from HIX Tutor

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.