Question

What is 7.09 × 10^–3 written in standard form?



A.
0.00709


B.
0.0709


C.
7090


D.
709,000

Answer 1

You clearly don't understand these, because I've seen so many of these questions by the same user. Do you need help?

Answer 2

no just making sure my answer is right :) but thanks

Answer 3

Okay, what did you get then?

Answer 4

C

Answer 5

Bro look at the exponent,if is positive you move the decimal point to the rigth and if is negative to the left

Answer 6

C is wrong

Answer 7

Yeah it's wrong. If you learn how to do these, it's so simple, you'll be like "Wow."

Answer 8

is a

Answer 9

oh okay

Answer 10

is A

Answer 11

okay

Answer 12

When you have a "-" then you have to go backwards so it would be ... .00709 (A)

Answer 13

oh

Answer 14

ya i just went over this stuff in my college prep class

Answer 15

Look at the pattern below:

\(10^3 = 10 \times 10 \times 10 = 1,000\)

\(10^2 = 10 \times 10 =100\)

\(10^1 = 10\)

\(10^0 = 1\)

\(10^{-1} = \dfrac{1}{10^1} =\dfrac{1}{10} = 0.1\)

\(10^{-2} = \dfrac{1}{10^2} = \dfrac{1}{10 \times 10} = \dfrac{1}{100} = 0.01\)

\(10^{-3} = \dfrac{1}{10^3} = \dfrac{1}{1,000} = 0.001\)

Now that you see what \(10^{-3}\) means,

then \(7.09 × 10^{–3} = 7.09 \times 0.001 = 0.00709\)