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shusha [124]
2 years ago
9

PLS HELP QUICK!!!

Mathematics
1 answer:
Flura [38]2 years ago
7 0

Answer:

B

Step-by-step explanation:

8*5/6= 20/3 which is equal to 40/6 or forty sixths

Please mark brainlest

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The polynomial equation x5-16x2=4x4-64 has complex roots + or - 2i what are the other roots? use a graphing calculator and a sys
hichkok12 [17]

Kindly proofread the question!!!

The leading term is x^6, not x5.


Answer: The additional roots are -2, +2, each with multiplicity 2.


Step-by-step explanation:

x^6 - 16x^2 = 4x^4 - 64


x^6 - 4x^4 - 16x^2 + 64 = 0

(x+2i)(x-2i) = (x^2+4) is a factor.

(x-2)(x+2)(x-2)(x+2)(x^2+4) = 0

Polynomial long division by x^2+4

x^6 - 4x^4 - 16x^2 + 64 = 0

First term of quotient is x^4

Subtract x^6+4x^4

Remainder is -8x^4 -16x^2+64

Second quotient term is -8x^2

Subtract -8x^4-32x^2

Remainder is 16x^2+64

Third quotient term is 16

Subtract 16x^2+64

Remainder is zero

Quotient is x^4 - 8x^2 + 16

(x^2-4)^2 = x^4 + 2(1)(-4)x^2 + 16

(x-2)(x+2)(x-2)(x+2)(x^2+4) = 0


4 0
3 years ago
Explain how 18 is an even number
Marta_Voda [28]
18 is an even number because if you divide 18 ÷ 2 = 9 it guves you an odd number
4 0
3 years ago
A researcher wanted to determine whether eating sugary cereal for breakfast increased the aggression of second graders during th
Artist 52 [7]

Answer:

20 students

Step-by-step explanation:

Sample is basically a selected subset of a population. A researcher is investigating the effect of sugary cereal on the aggression of second graders during morning play period. For this purpose, a researcher selected 20 student and feed them a sugary cereal and then observe their behaviors. Here, 20 student are selected from the all second grader students. So, the sample in the conducted study are 20 students.

5 0
3 years ago
Need help asap , Will give brainliest! please answer correctly!
insens350 [35]

Answer:

False

Step-by-step explanation:

7 0
3 years ago
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An item on sale costs 75% of the original price. If the original price was $40 , what is the sale price?
yanalaym [24]

Answer:

30

Step-by-step explanation:

40 divided by 4 is 10 and since 100 divided by 4 is 25 then multiple each by 3

5 0
2 years ago
Read 2 more answers
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