If f(x) = (3+2)
what is a + 2)?
(x-3)
O A.
(5+a)
(a -1)
O B.
3+ f(a +2)
(a)-1
O c.
(3+a)
+2
(a-3)

      5 + a

A:  

       a - 1

Step-by-step explanation:

          3+x                                       3 + a + 2

f(x) = becomes  f(a + 2) =

          x-3                                          a + 2 - 3

                                                                                                      5 + a

when a + 2 is substituted for x.  This last result simplifies to

                                                                                                        a - 1  

which matches Answer A.

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.

answer is 12345678900987654321234567890987654321

step-by-step explanation: