5 G
7
Question Progress
Homework Progress
a)
range
5796
A group of students were given a spelling test.
The table shows their marks.
Mark
Frequency
b)
students
6.
5
a) Work out the range of the marks.
c)
mean
7
+
4
b) How many students are in the group?
8
7
Submit Answer
9
10
c) Work out the mean mark of the group.
10
4

Astudent simplified a rational expression as shown.

12. the amount of money in a bank account decreased by 21.5% over the last year. if the amount of money at the beginning of the year is represented by ‘n', write 3 equivalent expressions to represent the amount of money in the bank account after the decrease?

Stefano accidentally dropped his sunglasses off the edge of a canyon as he was looking down. the height, h(t), in meters (as it relates to sea level), of the sunglasses after t seconds, is shown in the table. during its descent, the pair of sunglasses passed by a climber in the canyon 6 seconds after stefano dropped them. to the nearest meter, what is difference in elevation between stefano and the climber? 166 meters 176 meters 230 meters 240 meters its b.176 i took the test 166 is wrong and 176 is correct