3 years ago

Which of the following is a form of the law of cosines?

1 answer:

7 0

Answer would be B because I’m Geometry the cosine law is separated by different terms with either plus or minus sign presentation

You might be interested in

Y=-x-4

aliina [53]

Answer:

(-4 , 0)

Step-by-step explanation:

Graph attached

5 0

3 years ago

Which shows the expression below simplified? 0.00028 ÷ (7 × 10-4)

Katyanochek1 [597]

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