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Olegator [25]
3 years ago
5

Multiply. 2x(x2 + 2x - 6)

Mathematics
2 answers:
Stels [109]3 years ago
8 0
<span>2x(x2 + 2x - 6)
</span>First add what is in the "(" wich is 2x+2x
<span>2x(4x - 6)
</span>Second multiply the 2x by the 4x & -6
<span>8x-12x
Now subtract the -12x from the 8x
8x-12x = -4x


</span>
Anna11 [10]3 years ago
7 0
<span>x = {1.645751311, -3.645751311}

</span>
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6/3 + (-1/6) = ?<br><br> (These are supposed to be fractions)
Phoenix [80]

Answer: 11/6 or 1 5/6

<u>Simplify 6/3</u>

6/3÷3/3=2/1

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6 0
3 years ago
Seven customers enter a clothing store and are observed to determine if they will make a purchase. The store owner states that t
blondinia [14]

Answer: Mean = 5.25

Variance = 1.3125

Standard deviation = 1.456

Step-by-step explanation:

The mean and variance of a binomial distribution with parameters n (number of trials) and p ( the probability of getting success in each trial) is given by :-

\text{Mean}=np\\\\\text{Variance}=np(1-p)

Given : The total number of enter a clothing store : n=7

The probability of a customer making a purchase= 0.75

Now,

\text{Mean}=7(0.75)=5.25\\\\\text{Variance}=7(0.75)(0.25)=1.3125\\\\\Rightarrow\ \text{Standard deviation}=\sqrt{1.3125}=1.14564392374\approx1.1456

3 0
3 years ago
I dont know how to do this so hElp
STALIN [3.7K]

Answer:

3.5× c20

#######################

7 0
2 years ago
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Answer:

The answer I got was 7 7/10

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