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3 years ago

Add the following polynomials:

2 answers:

8 0

Add: (−x^3 + 26x^2 − 7x − 13) + (6x^4 − x^3 +8x + 27)

You may find it easier to write these one above the other:

 (−x^3 + 26x^2 − 7x − 13)
+ (6x^4 − x^3 +8x + 27)
-------------------------------------------
6x^4 -2x^3 + 26x^2 +x + 14 (answer)

Please note: You should use " ^ " to indicate exponentation.
6x4 −2x3 + 26x2 +x + 14 NO
6x4 −2x^3 + 26x^2 +x + 14 YES

alekssr [168]3 years ago

6 0

Answer:

is the answer 11?

Step-by-step explanation:

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Answer:

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Step-by-step explanation:

Given;

mean of A and B = 20

mean of B and C = 24

mean of A, B and C = 18

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Recall; A = 40 - B

A = 40 - 34

A = 6

Also, C = 48 - B

C = 48 - 34

C = 14

Therefore, the mean of A and C is calculated as;

$= \frac{A + C}{2} \\\\= \frac{6 + 14}{2} \\\\= 10$

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3 years ago

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