Answer: 29 $100 bills, and would 44 dollars back (not in real life because there would be tax but this is a math problem)
Answer:
(-5, 1.5)
Step-by-step explanation:
(-2 ,-1) ; (-8 , 4)
Midpoint = 
First, let me introduce the general equation of the parabola:
(x-h)^2 = +/- 4a(y-k) or (y-k)^2=+/- 4a(x-h), where
(h,k) are the coordinates of the vertex
a is the distance of the vertex to the focus
4a = length of lactus rectum or the focal width
If the equation contains (x-h)^2, then the parabola passes the x-axis twice. Similarly, (y-k)^2 passes the y-axis twice. If the sign is (-), it opens to the left(if y-axis) or downward (if x-axis). If the sign is (+), it opens to the right(if y-axis) or upward (if x-axis).
The equation of the parabola is -1/12 x^2 = y. Rearranging to the general form:
x^2 = -12y
Therefore,
-4a = -12
4a = 12
a = 3, and the parabola is facing downwards.
The vertex is (0,0) at the origin.
The focus is (0,-3). Since it is negative, the focus is situated downwards, hence -3.
The directrix is the mirror image of the focus. Hence, it is a line passing +3 on the y-axis. y=3
Focal width is 4a which is equal to 12 units.
Answer:
18 melon
Step-by-step explanation:
Given :
Original stack :
Melon = 45
Grape fruits = 60
Mini version :
Grapefruit = 24
Using grapefruit ; we can obtain the scale factor;
60 : 24 = 2.5 : 1
Hence,
Amount of melon in the mini version is :
45 / 2.5
= 18
