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Savatey [412]
2 years ago
8

1. Which of the following is the standard form of y = (x – 3)(x – 7)?

Mathematics
1 answer:
Andrej [43]2 years ago
4 0

9514 1404 393

Answer:

  b.  y = (x - 5)² - 4

Step-by-step explanation:

Here, we take "standard form" to mean "vertex form."

In the US, "standard form" would be ...

  y = x² -10x +21

Vertex form is ...

  y = (x -5)² -4 . . . . matches B

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Use the properties of exponents to rewrite the expression.<br> (-3yz)(-3yz)(-3yz)(-3yz)
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Answer:

Answer is 81y^4z^4

Step-by-step explanation:

The expression is (-3yz) (-3yz) (-3yz) (-3yz).

Since all the four terms have power 1:

(-3yz)^1 (-3yz)^1 (-3yz)^1 (-3yz)^1

We know that we can add the powers if the terms have same base

So,

=(-3yz)^1+1+1+1

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=(-3)^4(y)^4(z)^4.

If the power is an even number than the negative sign changes into positive sign.

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Thus the answer is 81y^4z^4....

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3 years ago
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The following data is a randomly selected sample of 20 state populations. find the measures of central tendency. you may use tec
GuDViN [60]

The mean is  6394530.35 and the median is = 3355572.5

The missing data is attached in the answer.

<h3>What is Mean ?</h3>

Mean is the average value of the data points , it is determined by dividing the total sum of the data points to the number of data points.

Mean and Median is the measure of the central; tendency of the data.

Mean is given by

Sum of the observations/number of observations

= (741894 + 6931071....)/20

= 6394530.35

2) To find median

The data needs to be arranged in ascending order

Then the median is the middle number of the arranged data

Here the median is = 3355572.5

To know more about Mean

brainly.com/question/13451489

#SPJ1

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algebraic expression as they used variables

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