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3 years ago

Which industrial city would have fewer air pollution incidents related to temperature inversions?

SAT

2 answers:

jenyasd209 [6]3 years ago

8 0

the great plains because they are lower and have hot air

Effectus [21]3 years ago

5 0

A is the answer to this

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Any action that causes harm to your computer is called a

FrozenT [24]

Answer:

Security risk.

Explanation:

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1 year ago

Simplify: 1 + i + i^2 + i^3 +i^4 +i^5 if i^2 =-1.

Vika [28.1K]

1 + i + i ² + i ³ + i ⁴ + i ⁵ = 1 + i + i ² (1 + i + i ² + i ³)

… = 1 + i + i ² (1 + i + i ² (1 + i ))

… = 1 + i + (-1) (1 + i + (-1) (1 + i ))

… = 1 + i + (-1) (1 + i - 1 - i )

… = 1 + i

Alternatively, notice that

1 - i ⁶ = (1 - i ) (1 + i + i ² + i ³ + i ⁴ + i ⁵)

so that

1 + i + i ² + i ³ + i ⁴ + i ⁵ = (1 - i ⁶) / (1 - i )

Now, i ⁶ = (i ²)³ = (-1)³ = -1, so

1 + i + i ² + i ³ + i ⁴ + i ⁵ = (1 - (-1)) / (1 - i )

… = 2 / (1 - i )

Multiply the numerator and denominator by the conjugate of 1 - i :

… = 2 (1 + i ) / ((1 - i ) (1 + i ))

… = 2 (1 + i ) / (1² - i ²)

… = 2 (1 + i ) / (1 + 1)

… = 1 + i

3 0

2 years ago

Read 2 more answers

you purchased a ticket to the musical hamilton through a verified reseller for $457.00. when your ticket arrives, you see that t

qaws [65]

Answer:

Whats the question?

Explanation:

7 0

3 years ago

How you feel sometimes when you critique your friend

n200080 [17]

Good because I know I am giving them good pointers, or feedback on whatever the situation may be.

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3 years ago

One major tectonic event that characterizes the late paleozoic eras is

Mademuasel [1]

The Paleozoic Era is bracketed by two major events in earth's history. It began with an unexplained explosion in animal life and ended with the world's largest mass-extinction known to man. The causes of these great events are currently unknown and under debate.

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3 years ago