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3 years ago

Let x = -4 ,Y = 6 and z = -1

Mathematics

2 answers:

Elena L [17]3 years ago

4 0

(-4)2-2(-4*6)+(6)2

The answer is f=52

goldfiish [28.3K]3 years ago

3 0

F = -4(2) - 2•-4•6 + 6(2)
F = -8 - -48 + 12
F = -8 - (-36)
-44

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Answer:

(a)

Step-by-step explanation:

Given

See attachment for sets A and B

Required

The true statement about both sets

First, we calculate the typical values (mean) of set A and set B.

This is calculated as:

$Mean = \frac{\sum fx}{\sum f}$

For A:

$A= \frac{0*1+2*1+5*1+6*1+7*1}{1+1+1+1+1}$

$A= \frac{20}{5}$

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For B:

$B = \frac{7 * 1 + 8 *1 + 9 * 2 + 10 * 1}{1+1+2+1}$

$B = \frac{43}{5}$

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Here, we can conclude that B has a larger typical value

Next calculate the spread (range) of sets A and B

This is calculated as:

$Range = Highest -Least$

For A:

$A = 7 - 0$

$A = 7$

For B

$B=10 - 7$

$B = 3$

Here, we can conclude that A has a larger spread.

Hence, (a) is true

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