9514 1404 393
Answer:
(d) D: [0, 60]; R: [-15, 0]
Step-by-step explanation:
The model is of the underwater portion of the net, so the only part of the graph we're interested in is that below the x-axis.
The x-intercepts of 0 and 60 define the bounds of the domain.
The range is the vertical extent of the graph in that domain, from y=-15 to y=0.
So, the domain and range are ...
Domain: 0 ≤ x ≤ 60
Range: -15 ≤ y ≤ 0
Answer:
B. y=3(x-1)2 + 3
Step-by-step explanation:
Given that
vertex of the parabola is at the point (1,3)
let's verify, if the option B is the correct equation of the parabola.
comparing to standard equationof parabola (standard quadratic equation), we get
to find the vertex we use formula for x- coordinate as
to find y put x=1 in the Eq1, we get
vertex =(x,y) = (1, 3)
thus vertex of the parabola from the equation y=3(x-1)2 + 3 is (1,3), thus verified
Answer: A=351.68 cm²
Step-by-step explanation:
To find the area of the shaded region, we would subtract the area of the circle by the area of the inner circle.
Area of Circle
Area of inner (white) circle
Now that we have the area to the circle and inner circle, we would subtract to find the area of the shaded region.