3 years ago

Need some help with congruence and similarity (Picture bellow)

Mathematics

1 answer:

DENIUS [597]3 years ago

8 0

Answer:

a and b are similarity i think that's what your looking 4 idk

Step-by-step explanation:

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A car travelled 72 km in 3/4 h. If the car is travelling at a constant rate how far will the car travel in one hour?

Anvisha [2.4K]

Answer:

96 km

Step-by-step explanation:

72/3 is 24. When yo add 24 to 72 you get 96km.

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3 years ago

3+4 40+3 30+4 which of these is another way to write

zhuklara [117]

(3+4) (40+3) (30+4)
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Sophie [7]

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Step-by-step explanation:

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3 years ago

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sergejj [24]

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3 years ago

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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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3 years ago