Answer:
-23/12
Step-by-step explanation:
6 3/4-8 2/3
=27/4-26/3
=3*27-26*4/12
=81-104/12
=-23/12
Answer:
Add up all of the numbers, and divide by the number of digits. To put it another way, the total is divided by the count.
Step-by-step explanation:
so ... 2,4,4,2
2+4+4+2= 12
12 divided by 4=3
i think 3 is the mean....
hope this helps.....
Answer:
-0.5 ms^-2
Step-by-step explanation:
The initial velocity (u) = 2 ms-1
Final velocity (v) = 2 ms-1
Time taken (t) = 8 seconds
However the question clearly says that the final velocity is in opposite direction to the initial velocity. This implies that we have (-v), final velocity in opposite direction.
We must recall that vectors in opposite direction are commonly shown using a negative sign. Velocity is a vector, hence it possesses both magnitude and direction as we can see from the question.
Hence;
From a= v-u/t
a= (-2) - 2 / 8 = -0.5 ms^-2
Hence the acceleration of the crate is -0.5 ms^-2
Answer:
71%
Step-by-step explanation:
I think the easiest way to think of this is to pretend that there are a total of 100 students at the high school, so that means the amount of people who work part time is 45% of 100 = 45 people. If 60% of those students love math, you do 0.6 * 45 = 27 people.
Next, 80% of the students who do not have a part time job (100 - 45 = 55) love math, so 0.8 * 55 = 44 people.
44 + 27 = 71, so the percent is 71/100 = 71%.
let me know if any part of that doesn't make sense
<span>The mean of the sampling distribution of the mean is the mean of the population from which the scores were sampled. Therefore, if a population has a mean μ then the mean of the sampling distribution μ₁ of the mean is also μ.
So </span>μ = μ1 =82
Now let' calculate σ the standard deviation <span> of the sampling distribution of the mean: It is computed as follows:
</span>σ₁ = σ/√n ==> σ₁ = 6/√n
