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3 years ago

Pls help fast 98 points again point spree)) What is the mean absolute deviation for 9, 7, 6, 8, 7, and 5?

Mathematics

1 answer:

dezoksy [38]3 years ago

6 0

Answer:

Step-by-step explanation:

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Which equation is true?

ch4aika [34]

Answer : $9x^2 - 25 = (3x - 5)(3x + 5)$

(1) $9x^2 - 25 = (3x - 5)(3x - 5)$

Use FOIL method to mulitply (3x – 5)(3x – 5)

$(3x - 5)(3x - 5) = 9x^2 - 30x + 25$

(2) $9x^2 - 25 = (3x - 5)(3x + 5)$

Use FOIL method to mulitply (3x - 5)(3x + 5)

$(3x - 5)(3x - 5) = 9x^2 - 15x + 15x - 25 = 9x^2 - 25$

(3) $9x^2 - 25 = -(3x + 5)(3x + 5)$

Use FOIL method to mulitply -(3x + 5)(3x + 5)

$-(3x + 5)(3x + 5) = -(9x^2 + 30x + 25) = -9x^2 -30x -25$

(4) $9x^2 - 25 = -(3x + 5)(3x - 5)$

Use FOIL method to mulitply -(3x + 5)(3x - 5)

$-(3x + 5)(3x - 5) = -(9x^2 - 25) = -9x^2 + 25$

So equation 2 is true

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3 years ago

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Here are graphs of two functions f and g the function h is defined by h(x)=f(x)-g(x)

bearhunter [10]

i did this last year lol ;-;

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3 years ago

A type is typically makes an error on one out of every 21 documents they complete if the typist can complete 120 documents an ho

motikmotik

<span>Answer: 21 document= 1 error 120 document= 1 hour in three and a half hours= 21 mistakes</span>

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3 years ago

Look at the picture below and answer the question that is being asked

IrinaVladis [17]

Answer:

Step-by-step explanation:

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a class has ten girls and three boys. if the teacher randomly picks ten students,what is the probability that he will pick all g

grin007 [14]

Answer:

10/13

Step-by-step explanation:

You will first add all the students the mentioned which gives you 13 then since they ask what is the probability it the teacher would pick girls. You know there's 10 girls and 3 boys so it would be 10/13.

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3 years ago