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3 years ago

Which of the following equations could be used to solve the given equation?

Mathematics

2 answers:

Pepsi [2]3 years ago

8 0

If we simplify like terms on left and right sides we gwt

16x + 9 = 4x

Its B

dmitriy555 [2]3 years ago

5 0

Answer: The correct option is (B) $16x+9=4x.$

Step-by-step explanation: We are given to select the correct equation that could be used to solve the following equation :

$9x+26+7x-17=2x+(-3x)+5x~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~(i)$

To find the correct equation, we need to simplify the given equation (i).

From equation (i), we get

$9x+26+7x-17=2x+(-3x)+5x\\\\\Rightarrow (9+7)x+(26-17)=2x-3x+5x\\\\\Rightarrow 16x+9=(2-3+5)x\\\\\Rightarrow 16x+9=4x.$

Thus, the required equation is $16x+9=4x.$

Option (B) is CORRECT.

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3 years ago

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Answer

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Step-by-step explanation:

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3 years ago

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Answer:

No. It is an obtuse triangle.

Step-by-step explanation:

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3 years ago

Atleast Twice as many cars as vans<br><br>How would you interpret this

SOVA2 [1]

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4 years ago

If IQ scores are normally distributed with a mean of 100 and a standard deviation of 15, what is the mean IQ score after the sco

lianna [129]

Answer:

$\mu = 0 , \sigma=1$

Step-by-step explanation:

Previous concepts

Normal distribution, is a "probability distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence than data far from the mean".

The Z-score is "a numerical measurement used in statistics of a value's relationship to the mean (average) of a group of values, measured in terms of standard deviations from the mean".

Solution to the problem

Let X the random variable that represent the IQ scores of a population, and for this case we know the distribution for X is given by:

$X \sim N(100,15)$