Dalsy measured the heights of 20 plants The table gives some information about the heights (h in cm) of the plants
Height of plants (D) Frequency
och < 10
1
10 h20
20 < < 30
7
2
30 s < 40
40H50
3
50 <<60
3
By Asing the midpoints of each group work out an estimate
for the mean heard of a plant

4

step-by-step explanation:

just do 5.2 + 2 ( 7.2) and 1/3 x 3 (.9) and youv'e got your equation. 0.9( 9/10) + 7.2 ^2 = 16.4 hope i could !

step-by-step explanation:

step-by-step explanation:

descending order means to order the polynomials from the term with the largest exponent to the term with the smallest exponent.  

therefore, the correct answer is d.  

replace   with   27   and simplify.

10 , 27 , 10 , 70 , 10 , 35 , 10 , 48

step-by-step explanation: