$0.\underbrace{00028}_{\rightarrow5places}=28\times10^{-5}\\\\0.00028:(7\times10^{-4})=\dfrac{28\times10^{-5}}{7\times10^{-4}}=\dfrac{28}{7}\times\dfrac{10^{-5}}{10^{-4}}\\\\=4\times10^{-5-(-4)}=4\times10^{-5+4}=\huge\boxed{4\times10^{-1}}\leftarrow\boxed{b.}\\\\used\ \dfrac{a^n}{a^m}=a^{n-m}$

6 0

3 years ago

Use the model to solve for x

laila [671]

Answer:

A) no solution

Step-by-step explanation:

1. X + 1 and X -1 -1 do not equal

2. This equation does not provide enough facts to be able to solve this

3. It is a trick question don't fall for it

Have a nice day!

5 0

4 years ago

Read 2 more answers

Which decimals written in expanded form are greater than 5.3? Check all that apply. 5 + 0.3 + 0.00 5 + 0.3 + 0.001 (5 × 1) + (2

Ksenya-84 [330]

Answer:

Any number in form of x.y = x (1) + 1/10 (y)

where x = 5 & y > 3 , or x > 5

Step-by-step explanation:

Expanded form of 5.3 = 5 (1) + 3 (1/10)

Some decimals written in expanded form that are greater than 5.3 :

5 (1) + 4 (1/10) = 5.4

6 (1) + 2 (1/10) = 6.2

3 0

3 years ago