Solve the system of equation using subtraction y= 2x-10 y=4x-8

y= 2x-10

y=4x-8

subtract

0 = -2x - 2

-2x=2

x = -1

y= 2x-10

y= 2(-1)-10

y = -2 - 10

y = -12

x = -1 and y = -12 or (-1,-12)

d. bc = 12 and ef = 16

step-by-step explanation:

we are given that δabc : δdef such that .

also, it is given that

so, from the options, we need that .

a.

b.

c.  

d.

as, we can see that only option d gives the same ratio as i.e. .

hence, the possible lengths are bc = 12 and ef = 16.