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ira [324]
4 years ago
9

Simplify the following polynomial expression. (5x^4-9x^3+7x-1)+(-8x^4+4x^2-3x+2)-(-4x^3+5x-1)(2x-7)

Mathematics
1 answer:
Anton [14]4 years ago
5 0

Answer:

5x^4 - 37x^3 - 6x^2 + 41x - 6

Step-by-step explanation:

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Answer:

7.5 kg

Step-by-step explanation:

Ratio of sand to cement = 24kg : 5kg

Today he needs to make the same type of mortar mix, but he will use 36kg of sand.

Let

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Ratio of sand to cement = 36 kg : x kg

Equate both ratios

24 kg : 5 kg = 36 kg : x kg

24/5 = 36/x

Cross product

24 * x = 5 * 36

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x = 180/24

x = 7.5

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4 0
3 years ago
9. a + 12 + 2a - 1<br> 10. 8x - 3 + 8x + 3<br> 11. 2x + 16 - 3x + 4<br> 12. x + y - 2x-3y
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Step-by-step explanation:

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3 years ago
I really need some help . I don’t know if my answer is correct or not ?
Aleks [24]

Answer:

\sqrt{2p + 5}  - 3 (p = 10) \\  \sqrt{20 + 5}  - 3 \\   \sqrt{25}  - 3 \\ 5 - 3 \\ 2

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3 years ago
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Given f(x)=2x^3-15x^2+22x+15<br> Find all real zeros
mario62 [17]

Answer:

Given function f(x) = 2x^3+15x^2+22x-15. Leading coefficient is p= 2,and constant q is 15. If p/q is a rational zero ,then p is a factor of ...

Step-by-step explanation:

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Answer:

3

Step-by-step explanation:

Let's find how much money is left if Mrs.Smith buys a shirt.

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3 years ago
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