Answer:
A
Step-by-step explanation:
Okay so I attatched pictures of my work. I would just graph it by plugging in x-values on either side of the vertex into the equation. For example, the vertex is at (-2,3). So try plugging x=-5 and x=1 into the equation (y=a(x-h)^2 +k).
y=(x+2)^2 +3
y=((1)+2)^2 +3=(3)^2+3= 9+3=
12
Now you can plot the vertex (-2,3), the point (1,12), and (-5,12). From there just connect the dots and you should get a graph that looks similar to the last picture I attached. Hope this all made sense sorry it was so wordy I just wasn't sure how much you knew or didn't know. So, I thought it would be better to explain it all rather than not enough.
if the biker keeps a continuos rate he should go 39600 feet in an hour
Step-by-step explanation:
Find the area of each part
<u>The circle</u>
- C = πr² = 3.14*(3/2)² = 7.07
<u>The square</u>
<u>The area within the square but outside of circle</u>
- A = S - C = 81 - 7.07 = 73.93
<h3>Part A</h3>
<u>Probability of hitting the black circle inside the target</u>
- P = 7.07/81 = 0.09 (rounded)
This is closer to 0 than to 1
<h3>Part B</h3>
<u>Probability of hitting the white portion of the target is</u>
- P = 73.93/81 = 0.91 (rounded)
This is closer to 1 than to 0