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Arisa [49]
3 years ago
7

How do you find m in a slope word problem?

Mathematics
2 answers:
fgiga [73]3 years ago
6 0

Answer:

use two points given or use rise over run

NISA [10]3 years ago
6 0

Answer: Slope: Very often, linear-equation word problems deal with changes over the course of time; the equations will deal with how much something (represented by the value on the vertical axis) changes as time (represented on the horizontal axis) passes.

Step-by-step explanation:

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It is claimed that automobiles are driven on average more than 20,000 kilometers per year. To test this claim, 100 randomly sele
kow [346]

Answer:

t=\frac{23500-20000}{\frac{3900}{\sqrt{100}}}=8.974      

p_v =P(t_{99}>8.974)=9.43x10^{-15}  

If we compare the p value and the significance level given for example \alpha=0.05 we see that p_v so we can conclude that we to reject the null hypothesis, and the actual mean is significantly higher than 20000.      

Step-by-step explanation:

1) Data given and notation      

\bar X=23500 represent the sample mean  

s=3900 represent the sample standard deviation      

n=100 sample size      

\mu_o =2000 represent the value that we want to test    

\alpha represent the significance level for the hypothesis test.    

t would represent the statistic (variable of interest)      

p_v represent the p value for the test (variable of interest)  

State the null and alternative hypotheses.      

We need to conduct a hypothesis in order to determine if the true mean is higher than 20000, the system of hypothesis would be:      

Null hypothesis:\mu \leq 2000      

Alternative hypothesis:\mu > 2000      

We don't know the population deviation, so for this case is better apply a t test to compare the actual mean to the reference value, and the statistic is given by:      

t=\frac{\bar X-\mu_o}{\frac{s}{\sqrt{n}}} (1)      

t-test: "Is used to compare group means. Is one of the most common tests and is used to determine if the mean is (higher, less or not equal) to an specified value".  

Calculate the statistic      

We can replace in formula (1) the info given like this:      

t=\frac{23500-20000}{\frac{3900}{\sqrt{100}}}=8.974      

Calculate the P-value      

First we need to calculate the degrees of freedom given by:  

df=n-1=100-1=99  

Since is a one-side upper test the p value would be:      

p_v =P(t_{99}>8.974)=9.43x10^{-15}  

Conclusion      

If we compare the p value and the significance level given for example \alpha=0.05 we see that p_v so we can conclude that we to reject the null hypothesis, and the actual mean is significantly higher than 20000.      

8 0
3 years ago
One serving of punch is 250 milliliters will ten servings fit in a 2-liter Bowl????
photoshop1234 [79]
It will be enought explaination:

First of all I jsed a chart to find where milli is located
K H D U D C M.
M stands for milli so it takes 1000 milli to get 1 liter.
Since 250 milli is one serving
250x10=2500
Evn thiugh it is above 2000 it still a yes
6 0
3 years ago
Can somebody talk (9999x784)+500=<br> free points
Delicious77 [7]

Answer:

7839716

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
If u=(0,3), what is the magnitude of 3u
Rina8888 [55]

Answer:

<em>9.</em>

Step-by-step explanation:

3 * √)0^2 + 3^2)

= 3*3

= 9.

4 0
3 years ago
What is 85% converted to a fraction?
Ksju [112]
The answer to the question is 85/100
6 0
3 years ago
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