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1 year ago

Can someone help with question #4 please

Mathematics

1 answer:

Lostsunrise [7]1 year ago

8 0

Answer:

4,0 is the right ok I am a professor

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Find Tan A and Tan B. write each answer as a fraction and as a decimal rounded into four places.

Artist 52 [7]

Tan A = 18/27
Tan A = 2/3
Tan A = 0.6667

Tan B = 27/18
Tan B = 3/2
Tan B = 1.5000

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2 years ago

(cos x - (sqrt 2)/2)(sec x -1)=0

Darya [45]

$(\cos x-\frac{\sqrt{2}}{2})(\sec x-1)$ =0 [/tex]

$=(\cos x-\frac{1}{\sqrt{2}})(\sec x-1)$ =0 [/tex]

$\frac{(\sqrt{2}\cos x-1)}{\sqrt{2}}(\frac{1}{\cos x\ }-1)=0$

(Reciprocal Identity)

$(\frac{^{\sqrt{2}\\cos x-1}}{^{\sqrt{2}}})(\frac{1-\cos x}{\cos x})=0$

$\frac{^{(\sqrt{2}\cos x-1})}{\sqrt{2}}\frac{(1-\cos x)}{\cos x}=0$

$(\sqrt{2}\cos x-1}){(1-\cos x)}=0$ (ZeroProduct Property)

$\sqrt{2}\cos x-1=0$

$\sqrt{2}\cos x=1$

$\cos x=\frac{1}{\sqrt{2}}$

$x=\frac{\Pi }{4}$

and

$1-\cos x=0$

$\cos x=1$

$x=0$

x=0 and x= $\frac{\Pi }{4}$ are the solutions.

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What is the scientific notation of 7,000,000

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Your number would be 10 and the exponet would be 6

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