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RUDIKE [14]
2 years ago
9

Find the greiple ofR(x) =( x ^3+10x^2 +32x+32)÷(X^2 + 2x-15)​

Mathematics
1 answer:
shtirl [24]2 years ago
6 0

Answer:

x3(+10x2 +32x +32) / (2 +30)

Step-by-step explanation:

(x3 +10x2 + 32x +32) / (x2 + 2 * 15)

x3(+10x2 +32x +32) / (2 +30)

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An industrial expert claims that the average useful lifetime of a typical car transimssion which comes with ten years warranty i
lesya692 [45]

Answer:

a. none of these answers

Data provides sufficient evidence, at 1% significance level, to support the expert's claim. In addition the p-value (or the observed significance level) is equal to P( T >3.281)

Step-by-step explanation:

Data given and notation  

\bar X=13.5 represent the mean height for the sample  

s=3.2 represent the sample standard deviation for the sample  

n=9 sample size  

\mu_o =10 represent the value that we want to test

\alpha=0.01 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 check if the mean is higher than 10 years, the system of hypothesis would be:  

Null hypothesis:\mu \leq 10  

Alternative hypothesis:\mu > 10  

If we analyze the size for the sample is < 30 and we don't know the population deviation so 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{13.5-10}{\frac{3.2}{\sqrt{9}}}=3.28    

P-value

The first step is calculate the degrees of freedom, on this case:  

df=n-1=9-1=8  

Since is a one side right tailed test the p value would be:  

p_v =P(t_{(8)}>3.281)=0.00558  

Conclusion  

If we compare the p value and the significance level given \alpha=0.01 we see that p_v so we can conclude that we have enough evidence to reject the null hypothesis, so we can't conclude that we have a mean higher than 10 years at 1% of significance.  

a. none of these answers

3 0
2 years ago
Exterior of scalene triangle sides are 25 and 15 and x. solve x.
Lyrx [107]

-- All three sides of a scalene triangle have different lengths.
So 'x' can't be 15 and it can't be 25.

-- 'x' must be 10 or more in order to reach between the ends
of the 25 and the 15.

-- 'x' must be less than 40 in order for the 25 and the 15 to reach
between its ends. 

So the value of 'x' must satisfy these conditions:

<em>0 < x < 15</em>
<em>15 < x < 25</em>
<em>25 < x < 40</em>

Any number that satisfies these conditions is an acceptable value for 'x'.


5 0
3 years ago
Read 2 more answers
In Raphael's class there are 14 boys and 10 girls. Select whether each statement is true or false.
SpyIntel [72]

Answer:

TRUE

TRUE

TRUE

FALSE

BOZO WHAT ARE STOPPPIDDD LIKE ARE YOU FROM NEW YORK EVEN

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
What is 0.004 divided by 0.05
Korvikt [17]
When u divide 0.004 by 0.05 you will get 0.08 as the quotient.
 

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4 0
3 years ago
Could anyone help with this, thanks !!
pogonyaev

Answer:

Step-by-step explanation:

5 0
3 years ago
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