Answer:
Step-by-step explanation:
as mode is 45 ,two of three is 45
i assume x =y=45
now (41+46+45+45+z)/5=50
177+z=50×5=250
z=250-177=73
so x=45
y=45
z=73
Answer: 17 is A and 18 is B
Used a calculator to add them all up! Get some sleep hope this helps.
17) 2(3x8)+2(3x6)+2(6x8) = 180
18) 4(9x2)+2(9x9) = 234
2 because the one side doubled and what happens to 1 side happens to them all, so 2
Answer:
Step-by-step explanation:
if r=1 perfect positive correlation.
if r=-1 ,perfect negative correlation.
r=0 ,no correlation.
r=.02 ,so D
Answer:
Step-by-step explanation:
We can write the following system of equations:
, where 
is the number of dimes she has and 
is the number of nickels she has.
Multiply the second equation by 
and add both equations to solve for :
.
Plug 
into any equation to solve for :
