Answer:
D) 
Step-by-step explanation:
The first step is to find the vertex.
Start with getting your coefficients:
a = 1, b = -6, c = 6
plug them into the equation 
Plug that back into the original equation to get y = -3
The vertex is going to be (3, -3)
The equation for Vertex Form is given by 
(a) being the coefficient in front of the 
(h) being the first point on the vertex (h,k) ({3},-3)
(k) being the second point on the vertex (h,k) (3,{-3})
20-30 = 10
10 divide 20 = 0.5
P = 0.5X
P = 0.5(10)
P = 50
value of P is 0.5
In a 45 45 90 triangle, the hypotenuse equals the length of the leg multiplied by the square root of 2.
Therefore, x = 6 * square toot (2)
which equals
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<span>
8.48528</span></span></span>...
Source:
http://www.1728.org/trig2.htm
Answer:
5/2 x^2y^2
Step-by-step explanation:
( x^2 - 3/5y^2)^2 + (3/4 x^2 + 4/5 y^2)^2 - (5/4x^2 - y^2)^2
= x^4 - 6/5x^2y^2 + 9/25y^4 + 9/16x^4 + 6/5x^2y^2 + 16/25y^4 - ( 25/16x^4
- 5/2x^2y^2 + y^4)
Distributing the negative over the parentheses:-
= x^4 - 6/5x^2y^2 + 9/25y^4 + 9/16x^4 + 6/5x^2y^2 + 16/25y^4
- 25/16x^4
+ 5/2x^2y^2 - y^4
Bringing like terms together
x^4 + 9/16x^4 - 25/16x^4 - 6/5x^2y^2 + 6/5x^2y^2 + 5/2x^2y^2 + 16/25y^4 + 9/25y^4
- y^4
Adding like terms:-
= 5/2 x^2y^2 Answer
