Sophie is making 400 scones. She uses butter, sugar and Tlour in the ratio 2:1:9
Here are the costs of those ingredients.
The total mass of the butter, sugar and Tlour in each scone is 30g
Work out the total cost of these ingredients for the 400 scones.

x= -3 and

step-by-step explanation:

to find the roots of a cubic, use division or factoring to find the factors then set equal to 0. as this is a difference of cubes, it factors into

where a is the cube root of .

here   this is 27 and the cube root of 27 is 3. so we write using the form:

.

set each factor to 0 and solve for x.

x-3=0

x=3

the quadratic expression does not factor and must be solved using the quadratic formula.

where a = 1, b=3, and c=9

this cubic has two complex roots.

answer: median

step-by-step explanation:

the median is the middle value when a data set is ordered from least to greatest