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3 years ago

What does 130<h<140 mean?

Mathematics

2 answers:

ddd [48]3 years ago

6 0

U have to put a number between it

131,132,133,134,135,136,137,138,139

mina [271]3 years ago

6 0

It is a category, it means that h is a number between 131 and 140.

Hope this helps :)

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What is the population of each place in BOTH scientific notation and standard notation?

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2 years ago

Given sin theta = 1/3 and 0 theta pi/2 find tan 2 theta

Kazeer [188]

Answer:

$\tan2\theta=\pm\dfrac{4\sqrt{2}}{7}$

Step-by-step explanation:

Given: $\sin\theta = \dfrac{1}{3}$

$0\leq \theta \leq \dfrac{\pi}{2}$

Theta lie in first quadrant.

Multiply both sides by 2

$0\leq 2\theta \leq \pi$

2theta lie in I and II quadrant.

$\tan2\theta$ is positive in I and negative in II quadrant.

$\sin\theta=\dfrac{1}{3}$

$\cos\theta=\dfrac{2\sqrt{2}}{3}$

$\sin2\theta=2\sin\theta\cos\theta$

$\sin2\theta=2\cdot \dfrac{1}{3}\cdot \dfrac{2\sqrt{2}}{3}=\dfrac{4\sqrt{2}}{9}$

$\cos2\theta=\pm \sqrt{1-\sin^22\theta}=\pm\dfrac{7}{9}$

$\tan2\theta=\dfrac{\sin2\theta}{\cos2\theta}$

$\tan2\theta=\pm\dfrac{4\sqrt{2}}{7}$

Hence, The value of $\tan2\theta=\pm\dfrac{4\sqrt{2}}{7}$

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3 years ago

Read 2 more answers

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The alien would be about 20 LBS on the earth

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3 years ago

PLEASE HELP I WILL GIVE BRAINLEST

Korvikt [17]

Answer:

Angle WZY=31degrees

Step-by-step explanation:

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11+1=8x-5x

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X=4

Substitute x=4 in 5x+11

5(4)+11=31

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2 years ago