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lutik1710 [3]
3 years ago
7

Simplify the expression 2(5x-1)

Mathematics
2 answers:
iVinArrow [24]3 years ago
5 0

Answer: 10x - 2

Step-by-step explanation:

Use the rule of distribution.

Then you distribute: 2(5x) - 2(1)

Giving you: 10x - 2

MrRissso [65]3 years ago
4 0
The answer is 8x I believe
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What is the positive difference between 8 and 9
spayn [35]

Answer:

8-9=-1

just absoulte value. |-1| = 1

Step-by-step explanation:

5 0
2 years ago
What is the additive inverse of the polynomial? -7y^2+x^2y-3xy-7x^2
il63 [147K]

Answer:

Additive inverse is  (7y² - x²y + 3xy + 7x²).

Step-by-step explanation:

Let the additive inverse of the given polynomial be Y.

Therefore as per definition of additive inverse of any polynomial the addition of a polynomial and additive inverse of any polynomial is always zero.

So Polynomial + additive inverse polynomial = 0

(-7y² + x²y - 3xy - 7x²) + Y = 0

Y = -(-7y² + x²y - 3xy - 7x²) = (7y² - x²y + 3xy + 7x²)

So the additive inverse of the polynomial will be (7y² - x²y + 3xy + 7x²).

6 0
3 years ago
Please quys can you help me with this​???? please
damaskus [11]

Answer:

A

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Because parallel lines never meet so we assume any value of x

6 0
3 years ago
3x+2(x-5)=25 show your work
Zanzabum

Answer:

x = 7

Step-by-step explanation:

Expand 3x+2(x-5)=25 which looks like

3x+2x-10=25

Add similar elements: ( 3x+2x = 5x)

5x-10=25

Add 10 to both sides

5x-10+10 = 25 + 10

Simplfy

5x = 35

Divide both sides by 5

5x ÷ 5 = 35 ÷ 5  

Simplfy:

x = 7

have a wonderful day

8 0
3 years ago
An oil exploration firm is formed with enough capital to finance ten explorations. The probabil- ity of a particular exploration
tensa zangetsu [6.8K]

Answer:

μ = 1 The firm expects that one oil exploration will be successful.

v(x)= 0.9

Step-by-step explanation:

The first step is to define the random variable x as:

x: number of oil explorations being succesful

Then x can be take this values:

x = 0 , x =1 ... x =10

x is a binomially distributed random variable with parameters.

p = 0.1 and  n=10

And the mean or the expected value of x is:

μ = E(x) = np

Then μ = 10*0.1 = 1

And the variance of x is:

V(x) = np(1-p)

V(x) = 10(0.1)(1-0.1)= 0.9

6 0
2 years ago
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