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liq [111]
3 years ago
9

Research was done to study the facial expressions of people, since facial expression clearly shows the emotional state of a pers

on. Researchers found that people who smiled a lot lived longer than those who didn't smile much.
Which statement can be inferred from the passage?


Smiling prolongs human life.



Smiling is associated with human longevity.



Smiling decreases a person's life span.



There is no link between smiling and human longevity.
Mathematics
2 answers:
finlep [7]3 years ago
8 0
B 

<span>A is wrong because you can't infer a cause and effect relationship between smiling and long life (other factors might be at work) </span>

<span>C and D are clearly wrong

</span>
Andrej [43]3 years ago
8 0

<em>Mark Me Brainliest !</em>

Question :

Which statement can be inferred from the passage?

Answer:

A.  Smiling prolongs human life.

<em> B [ Smiling is associated with human longevity ]</em>

C.  Smiling decreases a person's life span.

D.  There is no link between smiling and human longevity.


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nasty-shy [4]

Answer:

A.) 20x + 2y = 500

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C.) x-intercept = 25; How many T-shirts they can sell at most

Step-by-step explanation:

2y - 500 = -20x

20x + 2y - 500 = 0

20x + 2y = 500

y-intercept = 250; its meaning is how many boxes of pencils they started with.

20x + 2y = 500

20(0) + 2y = 500

2y = 500

2y/2 = 500/2

y = 250

x-intercept = 25; How many T-shirts they can sell at most

20x + 2y = 500

20x + 2(0) = 500

20x = 500

20x/20 = 500/20

x = 25

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Y_Kistochka [10]

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Step-by-step explanation:

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Divide. (3 3/4)÷(−2 1/2) Enter your answer as a mixed number, in simplified form, in the box.
neonofarm [45]
3 \frac{3}{4} = \frac{15}{4}

Because (4*3) + 3 = 15. Similary find the improper fraction for -2 1/2.

(15/4) / (-5/2) = -3/2

Convert -3/2 into a mixed fraction. 

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