20 plants were measured and their heights recorded in cm. Here are the heights:
b) Draw a frequency polygon
8.2 6.5 2.7 19.4
to represent the data.
16 14.1
17.1 14
8+
4.9 2.9 15.5 7.3
15 4.4 11.8 13.9
7
10.2 4.6 19.5 7.3
6
Frequency
a) Complete the frequency table.
Height, h cm Frequency
0 5
5 10 2
1
15 < h = 20
0
0
20
5 10 15
Height, h (cm)

i do not know the answer i am sorry

the answer for this question is : 360°

step-by-step explanation:

we have been given a triangle   we need to tell which one of these is a triangle below to map onto itself.

360° rotation is the complete rotation which eventually leads to the same figure which is given.

the correct will be, that is 360° that will cause the triangle below to map onto itself.

step-by-step explanation:

step 1: solve one of the equations for one of the variables. let's solve the first equation for y:

step 2: substitute that equation into the other equation, and solve for x.

step 3: substitute x = 4 x = 4 x=4 into one of the original equations, and solve for y.

its the second choice.

step-by-step explanation:

the elements in the range will be 7 less than the elements in the domain.