There would be 14 female and 7 male, so the total number of students is 21.
(a) From the histogram, you can see that there are 2 students with scores between 50 and 60; 3 between 60 and 70; 7 between 70 and 80; 9 between 80 and 90; and 1 between 90 and 100. So there are a total of 2 + 3 + 7 + 9 + 1 = 22 students.
(b) This is entirely up to whoever constructed the histogram to begin with... It's ambiguous as to which of the groups contains students with a score of exactly 60 - are they placed in the 50-60 group, or in the 60-70 group?
On the other hand, if a student gets a score of 100, then they would certainly be put in the 90-100 group. So for the sake of consistency, you should probably assume that the groups are assigned as follows:
50 ≤ score ≤ 60 ==> 50-60
60 < score ≤ 70 ==> 60-70
70 < score ≤ 80 ==> 70-80
80 < score ≤ 90 ==> 80-90
90 < score ≤ 100 ==> 90-100
Then a student who scored a 60 should be added to the 50-60 category.
Answer:
5x to the 3rd of 1/2 so add A to B and divide the counter to the table cloth and get 16.
Step-by-step explanation:
The first thing you would do is switch the x and y (B).
For example, to find the inverse of y = 2x + 8:
1. Swap x and y
x = 2y + 8
2. Solve for y (set the equation equal to it):
x - 8 = 2y
y = (x - 8) ÷ 2
= 1/2x - 4
