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kow [346]
3 years ago
10

Find the area of the region between the curves y=12-x^2 and y=x^2-6

Mathematics
1 answer:
marissa [1.9K]3 years ago
8 0
Here is my solution

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A hiker climbs up a steep bank and then rests for a minute. He then walks up a small hill and finally across a flat plateau. Wha
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rising rapidly at first then slowly keeps rising then it goes straight longitude and its a flat line

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3 years ago
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What is the solution to this equation?<br><br><br> 2x + 3 = x − 4
aivan3 [116]

Answer:

x = −7

Step-by-step explanation:

2x + 3 = x − 4

Subtract 3 from both sides of the equation

2x = x −7

Subtract x from both sides of the equation

x = −7

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3 years ago
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We want to have a survey and ask people working for IT companies if they prefer Skype to mobile phones for making calls. We want
weqwewe [10]

Answer:

For this case we want to test if in IT companies more than 20% of employees prefer to use Skype rather than a mobile phone (alternative hypothesis) and the complement would be the the null hypothesis. So then the system of hypothesis are:

Null hypothesis: p =0.2

Alternative hypothesis: p >0.2

And for this case we should use a righ tail test based on the alternative hypothesis.

Step-by-step explanation:

Previous concepts

A hypothesis is defined as "a speculation or theory based on insufficient evidence that lends itself to further testing and experimentation. With further testing, a hypothesis can usually be proven true or false".  

The null hypothesis is defined as "a hypothesis that says there is no statistical significance between the two variables in the hypothesis. It is the hypothesis that the researcher is trying to disprove".  

The alternative hypothesis is "just the inverse, or opposite, of the null hypothesis. It is the hypothesis that researcher is trying to prove".  

Solution to the problem

For this case we want to test if in IT companies more than 20% of employees prefer to use Skype rather than a mobile phone (alternative hypothesis) and the complement would be the the null hypothesis. So then the system of hypothesis are:

Null hypothesis: p =0.2

Alternative hypothesis: p >0.2

And for this case we should use a righ tail test based on the alternative hypothesis.

6 0
3 years ago
The two lines intersected by the transversal are barrel. What is the value of x?
Vladimir79 [104]
The value of x is 11

Because both the angles should be equal
3 0
3 years ago
3x+(24x+8)what is the answer ​
Keith_Richards [23]

We can get rid of the parentheses so it looks like this:

3x + 24x + 8.

Simplify:

27x + 8

5 0
3 years ago
Read 2 more answers
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