Answer:
95.4
Step-by-step explanation:
Answer:
Step-by-step explanation:
The vertex is halfway between focus and directrix, at (0,0).
The equation has the form y = ax².
Focal length p = distance between focus and vertex = 1
p = 1/|4a|
1 = 1/|4a|
|a| = ¼
The focus lies below the vertex, so the parabola opens downwards and a<0.
y = -¼x²
Answer:
6%
Step-by-step explanation:
Estimated distance = 80 miles
Actual distance covered = 75.5 miles
We need to find the percent error of the cyclist's estimate. Its formula is given by :
Put all the values,
or
= 6%
So, the percentage error is 6%.
Answer: 3x=60
Step-by-step explanation:
12x-20=10x+20
X=20
3(20)= 60
Answer:
<em>4x-3y=8</em>
<em>Simplifies to x=3/4y+2</em>
2x+5y=-9
Simplifies to -5/2y+-9/2
