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zlopas [31]
3 years ago
14

Can someone make sure the first 3 questions are correct and help me on the 4th one?

Mathematics
1 answer:
Ratling [72]3 years ago
4 0
Sorry, I'm no help because I have no idea how to do those!
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Fifty people were surveyed about their preference between chocolate and vanilla cake. The following two
GuDViN [60]

Answer:

TOTAL

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18

6

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28

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15

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In This sample, are the events "female" and "prefers chocolate" mutually exclusive

Step-by-step explanation:

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3 years ago
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3. 18 is 40% of what number?​
Mariulka [41]

#Lets just write x as the nunber you asked

x × 40/100 = 18

x = 18 : 40/100

x = 18 × 100/40

y = 1800/40

y = 45

<h3>Answer : 45</h3>
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2 years ago
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AlladinOne [14]

Answer:

what? im confused

Step-by-step explanation:

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2 years ago
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Sanjay begins to correctly graph the function f(x) = (x + 1)2 – 3. Based on the axis of symmetry and the vertex, which graph cou
Vilka [71]
Given the function f(x) = (x + 1)^2 - 3, we recognize that because of the x^2 factor we have a parabola that opens up.  Its vertex is (-1, -3), which I have swiped from the given equation.  The axis of symm is x= -1.
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The coat was $10 then was raised to $12 what was the percent increase
Colt1911 [192]

\frac{12 - 10}{10}
Thats what you would use, so now 2/10 is .2 When you divide so you move the decimal so 20%
The percent increase is 20%
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3 years ago
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