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Anastaziya [24]
3 years ago
5

Factor the trinomial by grouping. 9x^3 - 3x^2 -30x

Mathematics
1 answer:
katen-ka-za [31]3 years ago
4 0

Answer:

3x(3x+5)(x-2)

Step-by-step explanation:

9x^3-3x^2-30x= \\\\3x(3x^2-x-10)= \\\\3x(3x^2+5x-6x-10)= \\\\3x(x(3x+5)-2(3x+5))= \\\\3x(3x+5)(x-2)

Hope this helps!

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Svetllana [295]

Answer:

= h^-6

Step-by-step explanation:

When dividing powers you subtract them (indices rules)

--> -2 - 4 = -6

Hope this helps, please mark as brainliest

5 0
3 years ago
If 50 kg of rice cost Rs 375,how much can be purchased for Rs.525?​
uysha [10]

Answer:

70kg can be purchased for Rs 525

Step-by-step explanation:

Let the quantity of rice that can be bought with Rs 525 be = x

           Rice ( kg)                Cost (Rs)

              50                          375

                x                           525

  \frac{50}{x} = \frac{375}{525} \\\\x \times 375 = 50 \times 525\\\\375x = 26250\\\\x = \frac{26250}{375} = 70 \ kg

Therefore 70kg rice can be purchased for Rs. 525

8 0
3 years ago
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Andru [333]
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<span>__________________ </span>

<span>y = x/6 + 7/6 </span>
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<span>Compare the gradients, one is 1/6, one is 6. These are not parallel because they aren't the same, and not perpendicular because they aren't negative reciprocals. Therefore, neither.</span>
5 0
3 years ago
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Answer:

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Step-by-step explanation:

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