In the diagram shown,
ABCE is a trapezium,
AD is parallel to BC,
DE = 4 cm,
Area of ABCE = 60 cm?,
Area of ABCD = 48 cm?.
g cm
Work out the values of fand g.
You must show all your working.

area of ABCE= 60cm²

area of ABCD= 48cm²

BA is parallel to CD

f cm= 48÷4

f cm=12cm

area of ADE= 12×4÷2

area of ADE=24cm²

Step-by-step explanation:

the system of inequity is

step-by-step explanation:

from the given graph it is noticed that we have two related lines. one is solid and another is dashed.

if a line passing through two points, then the equation of line is

the solid line passing through the points (0,4) and (4,0).

the related equation of solid line is .

similarly, find the related equation of dashed line. the dashed liune passing through the points (0,0) and (3,1).

the related equation of dashed line is

from the given graph it is noticed that the point (0,1) lies on the shaded region, therefore the point (0,1) must be satisfied by the related equations.

check the related equations by the point (0,1).

this statement is true if the sign of inequality is < instead of equality. since it is an solid line therefore the sign of inequality will be . the required inequality is

similarly, check the second related equation.

it is a dashed line, so this statement is true if the sign of inequality is > . the required inequality is

step-by-step explanation:

f(gx)=f(1/x+2)

=(1/x+2)+2

=(1+2x)/2+2

=(1+2x+4)/2

= (2x+5)/2