Among all the students at a certain high school, the probability of picking a left-handed student is \dfrac{1}{4}, and the probability of picking a student who is learning spanish is \dfrac{2}{3}. which of the following could be the probability of picking a student who is either left-handed or learning spanish or both? indicate all such number.

last option

step-by-step explanation:

given that δdef is right and isoceles,

assuming that side df is the hypotenuse means that de an ef are the other 2 sides that intersect at 90° and are of equal length.

because they are of equal length, we can say that they are congruent

because they intersect at 90°, their slopes must be opposite reciprocals.

only the last option satisfies these conditions.

12

step-by-step explanation:

a triangle's   full angle is 180 degrees so 180 - 156 = 24. 24/2=12