Evaluate the following algebraic expression at x=−3, y=3 and simplify your answer. 5x+y−6
2 answers:
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You have some unknown integer 
, and you know that adding this and the next two integers, 
and 
, gives a total of 57.
This means
The task is to find all three unknown integers. Notice that if you know the value of, then you pretty much know the value of the other three integers.
To find, solve the equation above:
So if 18 is the first integer, then others must be 19 and 20.
This means
The task is to find all three unknown integers. Notice that if you know the value of
To find
So if 18 is the first integer, then others must be 19 and 20.
Answer:
The standard parabola
y² = -18 x +27
Length of Latus rectum = 4 a = 18
Step-by-step explanation:
<u><em>Explanation:-</em></u>
Given focus : (-3 ,0) ,directrix : x=6
Let P(x₁ , y₁) be the point on parabola
PM perpendicular to the the directrix L
SP² = PM²
(x₁ +3)²+(y₁-0)² =
x₁²+6 x₁ +9 + y₁² = x₁²-12 x₁ +36
y₁² = -18 x₁ +36 -9
y₁² = -18 x₁ +27
The standard parabola
y² = -18 x +27
Length of Latus rectum = 4 a = 4 (18/4) = 18