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valkas [14]
3 years ago
10

5 ( 3 squared x) + 9 ( 3 squared x)

Mathematics
1 answer:
yulyashka [42]3 years ago
5 0

Answer:

42x^2

Step-by-step explanation:

5(3x^{2} )+9(3x^2)\\\\=(5+9)(3x^2)\\\\=14(3x^2)\\\\=42x^2

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4 0
3 years ago
What is the value of 2x^3+7x^2-19x-6 if the value of x is -1
Paul [167]

Answer:

-40

Step-by-step explanation:

Let's input x into all of the slots.

-2^{2}+-7^{2}+19-6

Now, let's solve!

-4-49+19-6

-40

So, the answer is -40!

5 0
3 years ago
Which equation represents a line which is parallel to the line 7x - y = 4?
koban [17]

Answer:

Step-by-step explanation: step : Place the given line’s equation in slope- intercept form y = mx + b. A line parallel to this line will have the same slope.

7x - y = 4. Yields y = 7 x - 4. Therefore y = 7x - 5 is the correct answer.

6 0
3 years ago
After being rejected for employment, Kim Kelly learns that the Bellevue Credit Company has hired only two women among the last 2
masha68 [24]

Answer:

Binomial Problem with n = 20  and p(hire woman) = 1/2

P(at most two) = binomial(20,1/2,2) = 0.0001811

Step-by-step explanation:

The probability of  successes in  trials where  is the probability of success on any given trial is given by:

 

5 0
4 years ago
What is 3(x-1)<12 or x+7>10
Otrada [13]

Simplifying

3[x + -1] = 12

Reorder the terms:

3[-1 + x] = 12

[-1 * 3 + x * 3] = 12

[-3 + 3x] = 12

Solving

-3 + 3x = 12

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '3' to each side of the equation.

-3 + 3 + 3x = 12 + 3

Combine like terms: -3 + 3 = 0

0 + 3x = 12 + 3

3x = 12 + 3

Combine like terms: 12 + 3 = 15

3x = 15

Divide each side by '3'.

x = 5

Simplifying

x = 5


6 0
3 years ago
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