66 Dans chaque cas, factoriser. a) y2 - 10y + 25 b) y2 +10y + 25
d) 4x4 - 36
e) 36x2 - 12x +1
c) y? - 49
f) 20 - 5x?

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.

positive

step-by-step explanation:

the quadrant is facing upwards

ratio is 2 : 9

the answer is three

13.5 : 3

tip $2.90

total $17.40