9. Given that AB // CD, find the values of the unknowns in each of the following figures.
(a)
A 108
a 37
bº?
B 71
C
D
E

answer

the correct answer is

explanation

the given function is

the excluded values are obtained by solving:

we factor to obtain:

the excluded values are

f(x) is going down by 4

step-by-step explanation:

(its either that or its going left by 4)

the simplified form is

step-by-step explanation:

we want to simplify the expression,

let us change the middle bar to a normal division sign to obtain,

we multiply the first fraction by the reciprocal of the second fraction to obtain,

we factor to obtain,

we cancel the common factors to get,

we simplify to get,

the correct answer is b

-22

times both sides by 2, times () by 8, add alile terms, move terms, add alike and caculate divide both sides by 3