The equation y=−3.5x2−0.5x+65 models the height of a ball in inches for each bounce. note it's 3.5x to the second power. what is the best approximate for the height of the ball after the 3rd bounce? 7 in. 14 in. 32 in. 50 in.

Given equation is y = -3.5x-0.5x+65

y represents the height of the ball and x represents the number of bounces.

After 3rd bounce, so plug in x= 3 in the given equation, we get

Y=-3.5(3)-0.5(3) + 65

y = - 3.5 (9) - 0.5(3) + 65

y = - 31.5 - 1.5 + 65

y = -31.5 - 1.5 +65

Y = - 33 + 65

y = 32

So best approximate height of the ball after 3rd bounce is 32 in.

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.