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Lina20 [59]
3 years ago
9

X^3 - 2x^2 - 15x Factor completely ​

Mathematics
1 answer:
Schach [20]3 years ago
7 0

Answer: x(x−5)(x+3)

Step-by-step explanation:

:D

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Suppose y varies directly as x and y = 20 when x = 8. What is the value ofy whenx = 12?
AnnZ [28]

Answer:

y = 30

Step-by-step explanation:

Use the direct variation equation, y = kx

Plug in 20 as y and 8 as x, then solve for k:

y = kx

20 = k(8)

2.5 = k

So, the equation is y = 2.5x

Plug in 12 as x, and solve for y:

y = 2.5x

y = 2.5(12)

y = 30

So, when x = 12, y = 30

7 0
3 years ago
I need help... please help me... no links please
barxatty [35]

Answer:

  see attached

Step-by-step explanation:

The steps to solving an equation are those that undo the operations done to the variable. Here, the variable is multiplied by 2/3 and 15 is added to the product.

We undo the addition of 15 by subtracting 15 (from both sides of the equation).

We undo the multiplication by 2/3 by multiplying both sides of the equation by its inverse, 3/2.

It is useful to do simplification after each of these steps.

Attention needs to be paid to the signs. When 15 is subtracted from 9, a negative result is obtained. When that is multiplied by a positive number (3/2), a negative result remains.

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3 years ago
Farmer Justin needs to build a rectangular enclosure for his pet pig. He has 500 meters of fencing material to use. What dimensi
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20 by 25, I think. It is the enclosure with the most open space.
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What is the inverse function of f(x)=-1/4x +5 Select all that apply
Andreas93 [3]
The correct answer is option D which is f1^1(x) = -4x+20
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What is the value of 14 × 10,000?<br><br> 140<br><br> 1,400<br><br> 14,000<br><br> 140,000
Eddi Din [679]

Answer:

140000

Step-by-step explanation:

4 0
3 years ago
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