Scrie numerele 840 4220 2840 ca produse de doi factori dintre care unul sa fie scris cu o cifra

840 = 1×840=2×420 = 3×280 = 4×210 = 5×168 = 6×140 = 7×120 = 8×105

4220=1×4220 = 2×2110 = 4×1055 = 5×844

2840 = 1×2840 = 2×1420 = 4 × 710 = 5 × 568 = 8 × 355

pls ask

the system of inequalities is

step-by-step explanation:

step 1

find the equation of the dashed line

we have the points

(0,0) and (3,1)

the line passes through the origin, so, is a direct variation

find the slope

the equation of the dashed line is

the solution of the inequality a s the shaded area above the dashed line

therefore

the equation of the inequality a is

step 2

find the equation of the solid line

we have the points

(4,0) and (0,4)

find the slope

the equation of the solid line is

the solution of the inequality b s the shaded area below the solid line

therefore

the equation of the inequality b is

step 3

the system of inequalities is