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Marrrta [24]
3 years ago
7

PLZ HELP I WILL MARK BRAINLYIST!!!!!!!!!!!!!!!!Zoe is doing a survey to find the time her classmates spend playing video games.

She asks the following question:
Which student spends the most time playing video games?

Part A: Describe the data you would expect her to collect from this question. (5 points)

Part B: Explain whether this is a statistical question. If this is not a statistical question, then modify the question to make it statistical. (5 points)
Mathematics
2 answers:
Contact [7]3 years ago
6 0

right now? or later? i dont know when u need help...

Radda [10]3 years ago
3 0

Answer:

‎

Step-by-step explanation:

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Solve 2x^3+7x^2-2x-1=o​
Mashcka [7]

Answer:

x=\sqrt{3}-2\\x=-\sqrt{3}-2\\x=\frac{1}{2}

Step-by-step explanation:

This is a hard one

We have to use the rational root theorem

2x^3+7x^2-2x-1 = 0

We have to find all the factors of a and d and put them in a fraction

a=2\\d=-1\\\frac{1}{1,2}

We then plug them into the equation to see if any of them work

The equation isn't true when plugging 1, but is true when plugging in 1/2

factored form of 1/2 is (2x-1)

Then we divide the original equation by (2x-1) (you can use synthetic division or long division, it would be hard to type out the process for that) to get x^2+4x+1

So now the equation is (2x-1)(x^2+4x+1)

Solve the second half of this equation using the quadratic formula to get

\sqrt{3}-2 and -\sqrt{3}-2

We already know the solution for the first half of the equation (1/2)

So the final answers are:

x=\sqrt{3}-2, -\sqrt{3}-2, \frac{1}{2}

8 0
3 years ago
Solve the equation:<br><br> 3x-5 = 19-x
Sindrei [870]
3x-5=19-x
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Forty of Dan's 50 answers were correct, what percent of Dan's answers were correct?<br>​
Allushta [10]

Answer: 80%

Step-by-step explanation:

40/50 = 80/100 = .8 then move decimal over 2 places to the right for percent. .8 to 8.0 to 80.0

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2 + 5 = 7
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