Answer:
10.23 miles
Step-by-step explanation:
1 hour = 3600 seconds
54000 ft = 10.23 miles
Y1 is the simplest parabola. Its vertex is at (0,0) and it passes thru (2,4). This is enough info to conclude that y1 = x^2.
y4, the lower red graph, is a bit more of a challenge. We can easily identify its vertex, which is (-4,0), and several points on the grah, such as (2,-3).
Let's try this: assume that the general equation for a parabola is
y-k = a(x-h)^2, where (h,k) is the vertex. Subst. the known values,
-3-(-4) = a(2-0)^2. Then 1 = a(2)^2, or 1 = 4a, or a = 1/4.
The equation of parabola y4 is y+4 = (1/4)x^2
Or you could elim. the fraction and write the eqn as 4y+16=x^2, or
4y = x^2-16, or y = (1/4)x - 4. Take your pick! Hope this helps you find "a" for the other parabolas.
Answer: 9
Step-by-step explanation:
There are 8 equal sections which are meant to reflect the data Jasmine collected from surveying the students.
This means that each section represents;
= 36/8
= 4.5 students.
There are 2 sections that represent the number of students who said they would be traveling during the holiday break.
= 4.5 * 2
= 9 students
Answer:
A. The answer is 7.4x10^3
