Should be C
because 1/2u = (-0.5, 2)
so its (-0.5,2)-(3,-2)
which is
-0.5 - 3 = -3.5
2 - - 2 = 4
Answer:
x+y < 28
Step-by-step explanation:
1. Look at your variables: x is the first number and y is the second.
2. Know the limits: It says it has to be NO MORE than 28, so the inequality has to be less than (<) 28. And it says that the SUM of 2 numbers (in this case x and y), is no more than 28, so you know there's some addition between the two.
3. Write out your inequality: x+y < 28
The x-coordinate increases by .75 x 4 steps from point A: 1 + 4(.75) = 4
the y-coordinate decreases by 2.5 x 4 steps from A: 5 - 4(2.5) = -10
Answer: b (4,-5)
Answer:
1260
Step-by-step explanation:
mark Brainliest if correct PLEASE
Answer:
The mean of the sampling distribution of means for the 36 students is of 18.6 homework hours per week.
Step-by-step explanation:
Central Limit Theorem
The Central Limit Theorem estabilishes that, for a normally distributed random variable X, with mean
and standard deviation
, the sampling distribution of the sample means with size n can be approximated to a normal distribution with mean
and standard deviation
.
For a skewed variable, the Central Limit Theorem can also be applied, as long as n is at least 30.
In this question:
For the population, the mean is 18.6. So, by the Central Limit Theorem, the mean of the sampling distribution is also 18.6.