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Kamila [148]
3 years ago
14

Determine if the expression 9y^5+ y − 3y^3is a polynomial or not. If it is a

Mathematics
1 answer:
Alex73 [517]3 years ago
6 0
It is a polynomial equation. The degree is 5
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What is a solution for both equations y=x+3 and -2x+y=1
Soloha48 [4]

Answer:

(2, 5)

Step-by-step explanation:

Given the 2 equations

y = x + 3 → (1)

- 2x + y = 1 → (2)

Substitute y = x + 3 into (2)

- 2x + x + 3 = 1

- x + 3 = 1 ( subtract 3 from both sides )

- x = - 2 ( multiply both sides by - 1 )

x = 2

Substitute x = 2 into (1) for corresponding value of y

y = 2 + 3 = 5

Solution is (2, 5)

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3 years ago
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4 years ago
What is the sum of the geometric sequence -4 24 -144 if there are 8 terms
almond37 [142]

The correct answer is 959,780.

In order to find this, we need to first find all the first 8 terms of the series. Each term is the previous term multiplied by -6. This gives us the following terms.

-4

-4*-6 = 24

24*-6 = -144

-144*-6 = 864

864*-6 = -5,184

-5,184*-6 = 31,104

31,104*-6 = -186,624

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Now we add all those together and get our answer.

-4 + 24 - 144 + 864 - 5,184 + 31,104 - 186,624 + 1,119,744 = 959,780

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Step-by-step explanation:

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