Splitting up the interval [0, 6] into 6 subintervals means we have
and the respective midpoints are
. We can write these sequentially as
where
.
So the integral is approximately
Recall that
so our sum becomes
Answer:
Step-by-step explanation:
If the mean of 15 students is 71.5, then total score = 15 X 71.5 = 1072.5
The median score is 62, meaning that, the combined score of two students = 62 X 2 = 124
The difference of 1072.5 and 124 = 948.5, this represents the total score of 13 other students
∴ The mean score of 13 students = 948.5/13 = 73
In conclusion, it was only very few students that took the exam and majority of other students absconded from the exam. Majority of students scored averagely above 70.
Answer:
From one point, you can draw two tangents to a circle. These two tangents will be equal.
Step-by-step explanation:
7x - 24 = 57 - 2x.
Rearrange the numbers (by adding 2x and 24 on both sides), we get:
7x+2x = 57 + 24
9x = 81.
x = 9.
Length of PQ = 57-2x = 57 - 18 = 39
Answer:
9.4 = x
Step-by-step explanation:
You are given the hypotenuse and the adjacent side, leading you to use cosine.
<u><em>Set it up:</em></u>
<u><em /></u>
<em><u>Multiply everything by 14, to remove it from the denominator:</u></em>
<em><u /></em>
<em><u>Multiply accordingly:</u></em>
9.36 = x
<em><u>Round to nearest tenth:</u></em>
9.4 = x
Answer:28
Step-by-step explanation:
7x4=7+7+7+7=28