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Anuta_ua [19.1K]
3 years ago
9

Simplify the following polynomial

Mathematics
1 answer:
Amiraneli [1.4K]3 years ago
3 0

Answer:

-3x^4 - 13x^3 + 14x - 7

Step-by-step explanation:

(5x^4 – 9x^3 + 7x – 1) + (-8x^4 + 4x^2 – 3x + 2) - (-4x^3 + 5x - 1)(2x – 7)

simplify multiplied terms

(-4x^3 + 5x - 1)(2x – 7)

(-4x^3+10x-8)

group like terms together

(5x^4-8x^4) + (-9x^3-4x^3) + (7x-3x+10x) + (-1+2-8)

simplify grouped terms

-3x^4 - 13x^3 + 14x - 7

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Mickey exercises 1/4 hour every day.<br> How many hours does he exercise in 8 days?
stiv31 [10]

Answer: You multiply 8 x 3/4=24/4.  Then you simplify your answer and it is 6 hours.  24/4 is division 24 divided by 4 equals 6.

Step-by-step explanation: Or, you can change 3/4 to a decimal which is .75.  Then you multiply .75 x 8 and the answer is 6.00 which is 6 hours because you do not use the zeros after the decimal point.

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3 years ago
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It’s c. 5. i’m sorry if it’s wrong
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A manufacturer of matches randomly and independently puts 24 matches in each box of matches produced. The company knows that one
DochEvi [55]

Answer:

There is a 0.36% Chance of 1 or fewer in every 24 matches being flawed.

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Firstly we need to know what 1/10 of 5 is. It is 0.5.

You then need to multiply 24 by 1.5 to get 36. We then need to  divide that by 100 to get a percentage and we end up with 0.36%

Here is an explanation of how to get percentages: https://www.mathsisfun.com/converting-fractions-percents.html

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3 years ago
Write the coordinate of the vertices after a translation 8 units left and 13 units down. S(0,10). T(8,10) U(1,5)
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