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Lelechka [254]
3 years ago
6

Find the average rate of change of = f(x)= 2x^2-8x from X = 2 to X = 6 . Simplify your answer as much as possible.

Mathematics
1 answer:
erastova [34]3 years ago
7 0
Average rate=delta y/delta x...  

c=(72-48-8+16)/(6-2)

c=32/4

c=8


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vekshin1

Yes it will fit

Step-by-step explanation:

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so each side is \sqrt{11m^{2} } =3.31m

and the bedroom is 4m*5m

so it will fit

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svetlana [45]

Answer:

The Circle.

Step-by-step explanation:

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Which expression is equivalent to 5.4+3.4w-1.8w +5.8 A) 7(1.6+w) B) 1.6(7+w) C) 1.6(7w) D) 1.6(0.25+w)
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6 0
3 years ago
According to a polling​ organization, 24% of adults in a large region consider themselves to be liberal. A survey asked 200 resp
Varvara68 [4.7K]

Answer:

z=\frac{0.375 -0.24}{\sqrt{\frac{0.24(1-0.24)}{200}}}=4.47  

Now we can calculate the p value based on the alternative hypothesis with this probability:

p_v =P(z>4.47)=0.00000391  

The p value is very low compared to the significance level of \alpha=0.05 then we can reject the null hypothesis and we can conclude that the true proportion of people liberal is higher than 0.24

Step-by-step explanation:

Information given

n=200 represent the random sample taken

X=75 represent the number of people Liberal

\hat p=\frac{75}{200}=0.375 estimated proportion of people liberal

p_o=0.24 is the value that we want to test

z would represent the statistic

p_v represent the p value

Hypothesis to test

We want to verify if the true proportion of adults liberal is higher than 0.24:

Null hypothesis:p \leq 0.24  

Alternative hypothesis:p > 0.24  

The statistic is given by:

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

Replacing the info given we got:

z=\frac{0.375 -0.24}{\sqrt{\frac{0.24(1-0.24)}{200}}}=4.47  

Now we can calculate the p value based on the alternative hypothesis with this probability:

p_v =P(z>4.47)=0.00000391  

The p value is very low compared to the significance level of \alpha=0.05 then we can reject the null hypothesis and we can conclude that the true proportion of people liberal is higher than 0.24

6 0
3 years ago
Can you help me simplify number 1, it has the options below.
algol [13]
The square root and the squared cancel each other out so it would just be 27 to the first power,which is 27
4 0
3 years ago
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