Answer : c
I believe this is correct
Answer:
y = - 16t² + 55.6t + 6
Step-by-step explanation:
Using y - y₀ = vt - 1/2gt² where g = 32 ft/s², and v the velocity of the football
So y = y₀ + vt - 1/2 × (32 ft/s²)t²
y = y₀ + vt - 16t² where y₀ = 6.5 ft
y = 6 + vt - 16t²
Now, when t = 3.5 s, that is the time the teammate catches the ball after the quarterback throws it, y = 5 ft. Substituting these into the equation, we have
5 = 6.5 + v(3.5 s) - 16(3.5 s)²
5 = 6.5 + 3.5v - 196
collecting like terms, we have
5 - 6.5 + 196 = 3.5v
194.5 = 3.5v
v = 194.5/3.5 = 55.57 ft/s ≅ 55.6 ft/s
So, substituting v into y, our quadratic model is
y = 6 + 55.6t - 16t²
re-arranging, we have
y = - 16t² + 55.6t + 6
<span>we are given the function r=2cos(3θ)
from the pythagorean theorem,</span>
<span><span>r2</span>=<span>x2</span>+<span>y2
from the polar definition,</span></span>
<span>x=rcos3θ</span>
<span><span>x/r = </span>cos3θ</span>
<span>y=rsin3θ</span>
<span>r=2<span>x/r</span></span>
<span><span>r2</span>=2x</span>
<span><span><span>x2</span>+<span>y2</span>−2x=0.
This equation represents a parabola</span></span>
Answer:
The answer is A-2
Step-by-step explanation:
because half of 4 (Which is the width of the flower garden) is 2 (Which would be the width of the Vegetable garden.
