PLEASE ANSWER ASAP! A cross-section of an irrigation canal is a parabola. If the surface of the water is 40 feet wide and the canal is 16 feet deep at the center, how far down (from the surface) is the level where it is 20 feet wide?

answer

a,b, and d

explanation

a reflection angle is more than

but less than;

an angle that measures

is a reflex angle.(true)

an angle that measures less than

is acute.(true)

provided we are considering angles greater or equal to zero.

an acute angle lies in the range.

an obtuse angle is less than 180° but more than 90°

an angle that measures 300° is obtuse (false)

an angle that measures 65° is an acute angle.(true)

(w – 2.5)(w + 2.5)

(–4v – 9)(–4v + 9)

step-by-step explanation: