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3 years ago

Find the value of X in the simplest radical form

Mathematics

1 answer:

Galina-37 [17]3 years ago

4 0

Answer:. 7

Step-by-step explanation:

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Which inequality is shown in the accompanying diagram?

Olegator [25]

Answer:

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3 years ago

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The front and back covers of a text book are each 0.3 thick between the cover are 200 sheets of paper each 0.008 cm thick how hi

shepuryov [24]

Answer: 1,000

Step-by-step explanation:

The height of 10 stacks of books would be a 1,000 because if it's 0.3 thick between covers of 200 sheets then 10 books would be a 1,000.

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2 years ago

Find the angles between -pi and pi that satisfy:<br><br> (−√3) sin(v)+cos(v)=√3

MAXImum [283]

Observe that

$\sin\left(\dfrac\pi6-v\right)=\sin\dfrac\pi6\cos v-\cos\dfrac\pi6\sin v=\dfrac12\cos v-\dfrac{\sqrt3}2\sin v$

In the original equation, divide both sides by $\dfrac12$ :

$-\sqrt3\sin v+\cos v=\sqrt3\implies\dfrac12\cos v-\dfrac{\sqrt3}2\sin v=\dfrac{\sqrt3}2$

$\implies\sin\left(\dfrac\pi6-v\right)=\dfrac{\sqrt3}2$

Next,

$\sin x=\dfrac{\sqrt3}2\implies x=\dfrac\pi3+2n\pi,x=\dfrac{2\pi}3+2n\pi$

where $n$ is any integer. Then

$\sin\left(\dfrac\pi6-v\right)\implies v=-\dfrac\pi6-2n\pi,v=-\dfrac\pi2-2n\pi$

Fix $n=0$ to ensure $-\pi$ , so that

$v=-\dfrac\pi6,v=-\dfrac\pi2$

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3 years ago

Mel buys paper plates and paper cups for an event.

earnstyle [38]

For this you need to find the lcm of 36 and 60 = 180
therefore :
Mel needs to buy 5 packets of cups

(36*5=180cups)
and 3 packets of plates (60*3=180 plates)

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3 years ago

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If 4 candies cost 25 cents, how much does it cost t buy 20 candies?

anastassius [24]

Answer:

5.00

Step-by-step explanation:

answer

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2 years ago

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