3 years ago

Which polynomial equations have -i as one of their roots?

1 answer:

8 0

I = sqrt(-1)
i^2 = -1
(-i)^2 = (-i)(-i) = i^2 = -1
(-i)^3 = (-i)(-i)(-i) = (-i)(i^2) = i

use these facts to find which equation is correct if x = -i

i bet on 2,3 or 4

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3 years ago

How much smaller is the sum of the first 1000 natural numbers than the sum of the first 1001 natural numbers?

aleksandr82 [10.1K]

ANSWER

1001

EXPLANATION

The sum of the first n - natural numbers is

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$S_{1000}= \frac{1000}{2} (2(1) + 1(1000 - 1))$

$S_{1000}=500 (1001)$

$S_{1000}=500500$

The sum of the first 1001 terms is

$S_{1001}= \frac{1001}{2} (2(1) + 1(1001 - 1))$

$S_{1001}= 1001 \times (501)$

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ss7ja [257]

You can even pick an answer without any solution. It's <span>B. Yes, the remainder is 0. When you have something as a factor, there is no othere remainder except 0.</span>

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3 years ago

What is the initial value of the equation shown? y = −7x − 6 −13 −7 −6 −1

NARA [144]

Answer:

-6.

Step-by-step explanation:

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The initial value is found when x = 0.

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Hope this helps!

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Answer:

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Step-by-step explanation:

Thats wat u got on ur gragh so just go wit that XD

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