Which equation has the solutions x = 2.5 and x = -3 ?

Well, you didn't show the equation .  However we can generate an equation

by multiplying (x - 2.5) * (x +3)

x^2 -2.5x +3x -7.5 = 0

x^2 +.5x -7.5 = 0

DOUBLE-CHECK

Solving with the quadratic formula:

x = 2.5 and x = -3

CORRECT!!!

Step-by-step explanation:

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.