Squaring a number yields five times that number. If the number is x, which of the following equations
correctly models the situation?

x^2=5x

Step-by-step explanation:

x is the number

x^2=5x

x^2-5x=0

x(x-5)=0

x=0 ; x=5

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.

step-by-step explanation:

options