The longitudinal section of a canyon makes a parabola shape that has the equation y = 2(x – 3)2 – 18, where x and y are
measured in kilometers. If the depth of the canyon is 18
kilometers, how long is the distance between the two sides at
the top of the canyon? Round your answer to the nearest tenth.
kilometers

muyb ajo

step-by-step explanation:

jegosu

f(x) = y

f(-3) = -5

step-by-step explanation:

2. angles qrt and qst both measures 156 degrees.

step-by-step explanation:  

we have been given a diagram of a circle and we are told that measure of arc qvt is 156 degrees.  

we can see from our given diagram that angle qrt and angle qst subtends to arc qvt.

since we know that angles subtended by the same arc at the circumference are always equal.

by angle subtended by same arc theorem, measure of angle qrt and angle qst will be equal to the measure of arc qvt.

therefore, angles qrt and qst both measures 156 degrees and 2nd statement is the correct choice.