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

6 0

3 years ago

Adjust the number into correct standard form.<br> 2206×10^9

pentagon [3]

Answer:

2.306

Step-by-step explanation:

u while times the number

7 0

3 years ago

Consider the sequence 8, 6.2, 4.4.2.6. ... The function that describes the sequence is y(x) = 9.8 - 1.8(x). What is f(5)

Keith_Richards [23]

F(5)=9.8-1.8(5)
F(5)=9.8-9
F(5)=9

3 0

2 years ago