Answer:
x = 
y²
Step-by-step explanation:
Any point (x, y ) on the parabola is equidistant from the focus and the directrix
Using the distance formula, then
= | x + 3 |
Squaring both sides
(x - 3)² + y² = (x + 3)² ← expanding both sides
x² - 6x + 9 + y² = x² + 6x + 9 ← subtract x² + 6x + 9 from both sides
- 12x + y² = 0 ( subtract y² from both sides )
- 12x = - y² ( divide both sides by - 12 )
x = y²
Answer:
25in
Step-by-step explanation:
if the model is 63. 5 cm, and 2.54 cm is equivalent to 1 in
you can do 63.5 / 2.54 to get 25 in
Answer:
28
Step-by-step explanation:
since the 5+2 is in parenthesis(don't know how to spell it its these things >( ) if you didn't know) you have to do 5+2 1st so thats 7 then you do 4*7 which is 28
Answer:
1/2(a-4)
Step-by-step explanation:
first blank is 1/2 and second is 4.
4 babies and 7 adults
B head=4x1=4 Aheads (3x7)=21 21+4=25 heads
B wings 4x2=8 A wings(4x7)=28 28+8=36
