Consider the 6-inch × 9 inches rectangular cake that is 2 inches deep. If you cover the cake with frosting excluding the bottom, what is the surface area of the cake that will be covered with frosting?

168

Step-by-step explanation:

2(6 x 9) + 2(6x2)+ 2(9x2)=

168

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.

let m = monomial

let t = trinomial

so, m times t = t.

monomial times a trinomial = another trinomial.