Answer:
>0
+4>0
so the function is always positive.
Step-by-step explanation:
As always positive, because when you square numbers you will get always a positive number.
So +4>0, because the (+4) will not effect the answer as (x-4)^{2} will be positive.
Answer:
C. A matched pairs tt-interval for a mean difference
Step-by-step explanation:
When the observations from two samples are paired either naturally or by design we find the difference between the two observations of each pair. Treating the differences as a random sample from a normal population with mean ud= u1-u2 and unknown standard deviation , we perform one sample t- test on them . This is called paired difference or a paired or a matched t- test.
The test statistic
t= d`/sd/√n
where d`= ∑ di/n
and sd= ∑ (di- d`)²/n-1
with υ= n-1 degrees of freedom.
For example suppose 10 young recruits are given a strenuous physical training programme by Army. Their weights are recorded before they begin and after they complete they complete the training. The two observations obtained for each recruit. i.e. before and after measurements constitute natural pairing.
Answer:
5x + 7y = -42
Step-by-step explanation:
This question will be a little easier to answer if we change the form of the original equation from <em>slope intercept</em> to <em>standard form:</em>
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All parallel lines have the same slope, but what does that mean when our equation's in standard form. Well, slope only depends on the coefficients of the x and y terms, so any equation of a line in standard form with 5x + 7y on the left side will be parallel to the one in the problem. Looking through the possible choices, B. 5x + 7y = -42 is the only one that works.
Using desmos to check our work, we can see that the two lines are actually parallel!
Answer:No,that is false
Step-by-step explanation:Foil the equation.The correct answer is 3x+6.
Answer:
45
Step-by-step explanation: