Answer:
It will take 3hrs for the second ship to catch up with the first ship.
Step-by-step explanation:
Answer:
the desired equation is y = 3x - 5
Step-by-step explanation:
The correct form of this equation is y = mx + b, where m is the slope and b is the y-intercept.
Any line parallel to the given y = 3x + 6 has an equation of exactly the same form except for the y-intercept (b = 6).
We must find an appropriate y-intercept. To do this, substitute 4 for x and 7 for y in y = 3x + C: 7 = 3(4) + C, or 7 = 12 + C, or C = -5.
Then the desired equation is y = 3x - 5
Answer:
4, 8, 16.
Step-by-step explanation:
Let the three numbers in GP be 
, where 
. We are given that 
and 
, the latter of which gives ![ra = \sqrt[3]{512} = 8](https://tex.z-dn.net/?f=ra%20%3D%20%5Csqrt%5B3%5D%7B512%7D%20%3D%208)
. So substituting this into the former equation gives 
or
And this gives our answer directly.
The conclusion is that since the value of 0.028 is less than 0.05 so we reject the null hypothesis at 5% level of significance and conclude that the mean of the difference in SAT writing scores for all students who take SAT prep class is equal to 0.
<h3>What is a null hypothesis?</h3>
A null hypothesis is a hypothesis that there is no significant difference between specified populations, any observed difference being due to sampling error.
Here, the effect of a one-day SAT prep class at a 5% level of significance was assessed. Since the value of 0.028 is less than 0.05 so we reject the null hypothesis at 5% level of significance and conclude that the mean of the difference in SAT writing scores for all students who take SAT prep class is equal to 0.
Learn more about hypothesis on:
brainly.com/question/11555274
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Answer:
Step-by-step explanation:
