2 3/4− 1 2/3
Give your answer as a mixed number where appropriate.

Step-by-step explanation:

2 3/4 = 2 9/12

1 2/3 = 1 8/12

you do this so that denominators are the same

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you then add them

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1 + 2 = 3

8/12 + 9/12 = 17/12

17/12 = 1 5/12

1 5/12 + 3 = 4 5/12

option a, c,d are correct.

step-by-step explanation:

from the given figure, it is given that z is equidistant from the sides of the triangle rst, then from triangle tzb and triangle szb, we have

tz=sz(given)

bz=zb(common)

therefore, by rhs rule,δtzb ≅δszb

by cpctc, sz≅tz

also, from δctz and δasz,

tz=sz(given)

∠tcz=∠saz(90°)

by rhs rule, δctz ≅ δasz, therefore by cpctc, ∠ctz≅∠asz

also,from δasz and δzsb,

zs=sz(common)

∠zbs=∠saz=90°

by rhs rule, δasz ≅δzsb, therefore, by cpctc, ∠asz≅∠zsb

hence, option a, c,d are correct.