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2 years ago

What is 3/6 as a decimal?

Mathematics

1 answer:

iren2701 [21]2 years ago

5 0

0.5 is the answer hope I helped you

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Whatz 3x+2x+9x=x<br> slove plz

hram777 [196]

Answer:

14x=x

inequal or no solution

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Step-by-step explanation:

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2 years ago

One hundred eight Americans were surveyed to determine the number of hours they spend watching television each month. It was rev

PtichkaEL [24]

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2 years ago

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If tan theta = 10/13 and cos theta > 0 then sin2theta is what ?

svetoff [14.1K]

$sin2\alpha = \frac{260}{269}$

<u>Step-by-step explanation:</u>

We have , $Tan\alpha = \frac{Perpendicular}{Base} = \frac{10}{13}$ ,

We know that $sin\alpha = \frac{Perpendicular}{Hypotenuse} = \frac{Perpendicular}{\sqrt[2]{(Perpendicualr)^{2} + (Base)^{2})} }$

Substituting values of P & B , $sin\alpha = \frac{10}{\sqrt{10^{2} + 13^{2}} } = \frac{10}{\sqrt{269} }$

Now , $sin2\alpha = 2sin\alpha cos\alpha = 2sin\alpha \sqrt{1 - (sin\alpha)^{2} }$

⇒ $sin2\alpha =$ $\frac{10}{\sqrt{269} }$ × $\sqrt{1 - (\frac{10}{\sqrt{269} })^{2} }$ ×2

⇒ $sin2\alpha = \frac{20}{\sqrt{269} }( \sqrt{\frac{269 - 100}{269} } )$

⇒ $sin2\alpha = \frac{20}{\sqrt{269} }( \sqrt{\frac{169 }{269} } )$

⇒ $sin2\alpha = \frac{260}{\sqrt{269} }( \sqrt{\frac{1}{269} } )$

⇒ $sin2\alpha = \frac{260}{269}$

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2 years ago

Children under 10 years and older people over 65 years receive a discount on movie tickets. Let x represent the age

Nuetrik [128]

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2 years ago

True or False

lora16 [44]

Answer: True i believe

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2 years ago

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