Answer:
B
Step-by-step explanation:
From any point (x, y) on the parabola the focus and directrix are equidistant.
Using the distance formula
= | y - 6 |
Squaring both sides
(x + 2)² + (y - 4)² = (y - 6)² ← distributing
x² + 4x + 4 + y² - 8y + 16 = y² - 12y + 36 ( subtract y² - 12y + 36 from both sides )
x² + 4x + 4 + 4y - 20 = 0 ( subtract x² + 4x + 4 from both sides )
4y - 20 = - x² - 4x - 4 ( add 20 to both sides )
4y = - x² - 4x + 16 ( divide through by 4 )
y = - 
x² - x + 4, that is
f(x) = - x² - x + 4 → B
Answer:
1.→∠CEA and ∠CEF are Adjacent Angles.Two Angles are said to be Adjacent if there is one common ray between these two angles and non common ray lie on opposite side of common ray. Here, CE is a common ray and AE and EF are non common rays. 2.→CD is a line. →∠CEF+∠FED=180°---Angle in a Linear pair →90°+∠FED=180° →∠FED=180 ...
Step-by-step explanation:
Answer:
Rational
√36
=6
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Answer:
2.064657 Gallons or 2 gallons
Step-by-step explanation:
Answer: 240
Step-by-step explanation:there are 60 mins in each hour .
So multiply 60 and 4 because in each hour there is 60 minutes and there is 4 hours
