Ineed geometry i don't know what is the correct classification for ∠bec? i can't tell if it's straight, acute, obtuse, or a right angle.

Angle BEC is the unmarked angle in the middle of the figure. Its value is the difference between straight angle AED (180°) and the two marked angles, 57° and 33°. That difference is ...

... 180° - 57° -33° = 90°

∠BEC is a right angle.

Right angle

Step-by-step explanation:

We are given that

Angle AEB=

Angle CED=

We have to find  the classification of angle BEC

We know linear sum =

Angle AEB +Angle BEC+Angle CED=180

Substitute the values then we get

Hence, the angle BEC is right angle

use this formula:

p(a\b) = p(a and b)/p(b).

take it from here.

f(2x−x2)=−3x2+6x−1

step-by-step explanation:

set up the composite function and evaluate.

f(2x−x2)=−3x2+6x−1