3 years ago

Help me out please? Thank you!

1 answer:

5 0

The answer is B) 3/4
this is because if you add up the amount of water from the first column (1/4) you get two full cups. if you add up the amount of water from the third column (3/4) you get 3.75 cups

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-64=(2cos(pi/2)+2i sin(pi/2))^n..... n=??

zvonat [6]

Answer:

The real solution is $n=6$ .

Step-by-step explanation:

$\cos(\frac{\pi}{2})=0$ while $\sin(\frac{\pi}{2})=1$

So the equation becomes:

$-64=(2(0)+2i(1))^n$

$-64=(0+2i)^n$

$-64=(2i)^n$

We know that $2^6=64$ . So let's see what $n=6$ gives us:

$(2i)^6=64i^6=64i^4i^2=64(1)(-1)=-64$ .

$-64$ is the result we wanted.

$n=6$ is therefore a solution.

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Step-by-step explanation:

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vampirchik [111]

18,366 rounded to the nearest thousand is 18,000

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4 years ago

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What is the 3rd terms of the sequence:<br> f(1)=-3, f(n)= f(n-1)+5

natima [27]

Answer:

f(3) = 7

Step-by-step explanation:

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Elanso [62]

270° → $\frac{3π}{2}$ ≈ 4.7

360° → $2π$ ≈ 6.3

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135° → $\frac{3π}{4}$ ≈ 2.4

225° → $\frac{5π}{4}$ ≈ 3.9

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3 years ago