Answer:
Try using quizlet flashcards they are what I use and in my opinion they are great
Step-by-step explanation:
Answer:
Step-by-step explanation:
“the center of the ellipse is located below the given co-vertex”
Co-vertex and center are vertically aligned, so the ellipse is horizontal.
Equation for horizontal ellipse:
(x-h)²/a² + (y-k)²/b² = 1
with
a² ≥ b²
center (h,k)
vertices (h±a, k)
co-vertices (h, k±b)
foci (h±c,k), c² = a² -b²
One co-vertex is (-8,9), so h = -8.
One focus is (4,4), so k = 4.
Center (h,k) = (-8,4)
c = distance between center and focus = |-8 - 4| = 12
b = |9-k| = 5
a² = c² + b² = 169
(x+8)²/169 + (y-4)²/25 = 1
Y = 10+x
(Moving the x)
y = x+10
(Reordering the x so it becomes y=mx+b)
The equation is y = x + 10
Hope this helps! :)
Step-by-step explanation:
192 / 24 = 8
Since 8 is a whole number, 8 classes per grade is enough to accommodate the 192 students in the grade.
The answer is 8.
