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vredina [299]
2 years ago
8

Which best defines the term empirical evidence?

Mathematics
2 answers:
kirill [66]2 years ago
6 0

Answer:

evidence based on experience and observation

Step-by-step explanation: 100%

sergey [27]2 years ago
5 0

Answer:

the fourth answer, hope this can help

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Is x+y=10 a direct variation?
arlik [135]
✡ Answer: True (yes) <span>✡

- -Why?

Because we can determine its a direct variation just based upon the x and y.

</span>✡Hope this helps<span>✡</span>
5 0
3 years ago
Read 2 more answers
What division problem does the model show? (Giving Brainliest To Whoever Answers Good)
Jobisdone [24]

Answer:

18÷18÷18

=0.05555555555

4 0
2 years ago
Helpp
Svetach [21]

Answer:

<h3>21mi/gn</h3>

Step-by-step explanation:

<h3>7mi/1/3gncalculate the product</h3>

7mi/gn/3simplify the complex fraction

<h3><em>So </em><em>the </em><em>answer </em><em>is=</em><em>2</em><em>1</em><em>m</em><em>i</em><em>/</em><em>gn</em></h3>

<h3><em>Hope </em><em>it </em><em>helps</em></h3>
6 0
2 years ago
I have a series of 2 questions.
Margarita [4]
1)
I:y=3x-4
II:9x-3y=14


substitute y into II:
9x-3*(3x-4)=14
9x-9x+12=14
12=14

this is obviously not equal so there is no solution, the lines are parallel

2)
I:y=4x+6
II:5x-y=6

substitute y into II:
5x-(4x+6)=6
5x-4x-6=6
x=12
substiute x into II:
5*12-y=6
-y=6-60
-y=-54
y=54

the solution is (12,54)
3 0
3 years ago
In recent commercials Toyota claimed that 80% of its vehicles sold in the past 20 years are still on the road. You work for an a
Anvisha [2.4K]

Answer:

Step-by-step explanation:

We have to perform one sample proportion test. To do so we have to proceed through following steps.

(1) We have to collect data about vehicle sales in last 20 years.

(2) Using random number table or random number generator or otherwise we have to select sample of vehicles from the list of sale. In this step, we have to keep an eye on the fact that sample is to be selected from all years (all of 20). Using stratified random sampling by dividing vehicles sold over different years is an effective way to do so. That means, we may divide vehicles sold into 20 homogeneous strata over 20 years and select sample from each strata.

(3) After selecting sample of vehicles we have to communicate to corresponding vehicle owners to gather information about that particular vehicle.

(4) We have to note number of vehicles which are still on the road.

Suppose, we have selected  n vehicles as sample and after communicating we found that \tiny r of those are still on the road.

We have to test for null hypothesis H_0:p=0.80

against the alternative hypothesis H_1 \neq 0.80

Our test statistic is given

z=\frac{\hat p - p_0}{\sqrt{p_0(1-p_0)/n} }

here,

\hat p =\frac{r}{n}

p_0 =0.80

z=\frac{r/n-0.80\sqrt{n} }{0.40} \\\\=2.5(\frac{r}{n} -0.8)\sqrt{n}

We then calculate corresponding p-value.

We reject our null hypothesis if \text{p-value} , level of significance.

According to our obtained p-value and level of significance we proceed to certain conclusion.

8 0
3 years ago
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