2 years ago

Did I do this right?

Mathematics

1 answer:

zavuch27 [327]2 years ago

8 0

Answer:

3CuCl2 + 2Ni → 3Cu + 2NiCl3

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About 1.15 million people live in a circular region with a population density of about 18,075 people per square kilometer. Find

Tanzania [10]

Step 1

<u>Find the total area</u>

Total area=(1,150,000/18,075)=63.62 square kilometer

The area of a circle is equal to

$A=\pi * r^{2} \\ 63.62= \pi * r^{2}\\r=\sqrt{(63.62/\pi)} \\r=4.5\ km$

therefore

the answer is

$4.5\ km$

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3 years ago

Explain how finding 7x20 is similar to finding 7 x 2,000. Then find each product

Sphinxa [80]

7×20 and 7×2000 are similar. The amount of zeros are the dependent factor.

7×20= 140
7×2000= 14000

The base equation is 7×2=14
Any additions of zeroes in this formula will be added at the end result.

Ex.
7×2=14
7×20=140
7×200=1400
70×200=14000
700×200=140000

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3 years ago

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timofeeve [1]

Answer:

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Step-by-step explanation:

f(0) = -5^0 = -1

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3 years ago

Can you help me please?

Fofino [41]

Answer: n=4,-4

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2 years ago

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3 years ago