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3 years ago

What I need to do with this problems

Mathematics

1 answer:

alina1380 [7]3 years ago

8 0

Answer:

L x W x H =Area

Step-by-step explanation:

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Multiply. Express your answer in simplest form. 9 1/6 × 1 1/11

Sati [7]

Answer:

Step-by-step explanation:

First convert the fractions.

9 1/6 to 55/6 and 1 1/11 to 12/11

With these fractions, you can cross out 11 and 6.

55 times 12 5 × 2

6 11 1 × 1

This equals 10/1 or 10

8 0

3 years ago

Read 2 more answers

How is 77,184 the area of South Dakota

ivolga24 [154]

The area of the state of South Dakota is 77,184 square miles.

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2 years ago

How do you write 180% as a fraction or mixed number in simplest form?

Zigmanuir [339]

180% would be written as 1 4/5 in simplest form

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3 years ago

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

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

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

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

⇒ $sin2\alpha = \frac{260}{269}$

6 0

3 years ago

Find the value of r 4(x-3)-r+2x=5(3x-7)-9x

vlabodo [156]

r = 4(x-3)/5(3x-7) + 11x

6 0

3 years ago