2. a. given two sets s = {w, x, y, z} and t = {%,^,* and a function : s → t defined as follows: f(w) = %, f(x) =^, f(y) = *, f(z) = %. determine if f is one-to-one and onto. [2 marks) find f - if it exists; otherwise give a reason why it does not exist. [1 mark] b. derive a formula for the sum of the first positive odd integers, [3 marks)

hi there!

step-by-step explanation:

a roof pitch is basically for every inch rise there is 12 inches run.

the height of the roof is also known as the rafter.

formula: rafter^2 = rise^2 + run^2

rafter^2 = 5^2 + 12^2

rafter^2 = 25 + 144

rafter ^2 = 169"^2

the height of the roof from the lowest point to the highest point is 169"^2.

hope this : )

it is definatly the 3rd one. very much looks like it, for a good chance, the third one would be best for you.

8(4)^8=72^feet to say that the total can conclude to 8(4) which as you know would mean 8 x 4. that equals 32w. 32^ could make a 72 answer as well. but your coefficent will remain w so your answer is 72w.

you!

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i think the answer is a.( -3, -1 )