4 red bricks have a mean weight of 5kg 5 blue bricks have a mean weight of 9kg
1 green brick has a weight of 6kg

Donna says, "The mean weight of the ten bricks is less then 7kg"

Is donna correct?

Oh um i know this isn't an answer but it wont let me add a question so can i am going to ask it on here : if you get £1  in exchange for £1.17 euros then how many euros would you get from £280

Step-by-step explanation:

please can someone answer this for me please x.

99

step-by-step explanation:

see attached

step-by-step explanation:

given the function as;

write the equation replacing f(x) with y

form   and fill a table containing values of y with corresponding values of x

you can take a range for   values of x as -3≤x≤3

solving for x=-3

for x=-2

repeat the same procedure to get the values of y for the remaining ,x=-1 to x=3

plot the values of y against values   of x and obtain the following graph