Answer:
centroid divides median into the ratio 2:1 then
PC/CY=9/x=2/1
x=4.5
then the total length PY = 9+4.5=13.5
Answer:
Step-by-step explanation:
Answer:
rate of change
Step-by-step explanation:
The average rate of change between two input values is the total change of the function values (output values) divided by the change in the input values.
Answer:
(11.242 ; 12.958)
Step-by-step explanation:
The confidence interval is obtained using the relation :
C. I = xbar ± Zcritical * s/√n
Given that ::
xbar = 12.1 ;
Standard deviation, s = 16.6
n = 1012
C. I = 12.1 ± 1.645 * (16.6/√1012)
C.I = 12.1 ± 0.8583881
C. I = 11.242 ; 12.958
Words of Tasha = A
A x 120/100=54
simplify 120/100=6/5
A x 6/5=54
divide both side by 6/5
A=54/(6/5)
A=54x5/6
A=45
Tasha typed 45 words
