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Komok [63]
3 years ago
6

3x(x2 + 2x – 6) + 4(x2 – 6x + 2)

Mathematics
1 answer:
Drupady [299]3 years ago
4 0

Step-by-step explanation:

3x(x2 + 2x – 6) + 4(x2

– 6x + 2)

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Out of a total of 39 dogs, 27 were poodles. What fraction of the dogs were poodles?
Kay [80]

Answer:

9/13 were Poodles

Step-by-step explanation:

The answer is 9/13 because 39 multiplied by 9/13 is 27.

P.S Can I have brainliest?

4 0
2 years ago
What is the solution to the equation? 3x - 5 =7x -9
Alecsey [184]

Answer:

x=1

Step-by-step explanation:

3x - 5 =7x -9

Subtract 3x from each side

3x - 5-3x =7x-3x -9

-5 = 4x-9

Add 9 to each side

-5+9 = 4x-9+9

4 = 4x

Divide each side by 4

4/4 = 4x/4

1=x

5 0
3 years ago
Read 2 more answers
Convert y + 1 = 3/4 (x - 16) to standard form.
Archy [21]
3x/4-y=13 or choice B
7 0
3 years ago
2x + 7 =30, x = 3 true or false
RSB [31]

Answer:

False

Step-by-step explanation:

2x+7=30

2x=23

X= 23/2 or 11.5

X does not equal 3, therefore the statement is false

6 0
3 years ago
Read 2 more answers
Incomes in a certain town are strongly right-skewed with mean $36,000 and standard deviation $7000. a random sample of 75 househ
Svet_ta [14]
Since the sample is greater than 10, we can approximate this binomial problem with a normal distribution.

First, calculate the z-score:

z = (x - μ) / σ = (37000 - 36000) / 7000 = 0.143

The probability P(x > 37000$) = 1 - P(<span>x < 37000$), 
therefore we need to look up at a normal distribution table in order to find 
P(z < 0.143) = 0.55567 
And 
</span>P(x > 37000$) = 1 - <span>0.55567 = 0.44433

Hence, there is a 44.4% probability that </span><span>the sample mean is greater than $37,000.</span>

4 0
3 years ago
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