QueenNerdy889
21.06.2019 •
Mathematics
Rewrite the hyperbolic equation 4y^2 -9x^2 +54x-8y-113=0
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Ответ:
Standard form:
(1/9)(y - 1)^2 - (1/4)(x - 3)^2 = 1
Step-by-step explanation:
4y^2 -9x^2 +54x-8y-113=0
-9(x^2 - 6x) + 4(y^2 - 2y) - 113 = 0
Completing the square:-
-9 [(x - 3)^2 - 9] + 4 [ y - 1)^2 - 1] = 113
-9(x - 3)^2 + 81 + 4(y - 1)^2 - 4 = 113
-9(x - 3)^2 + 4(y - 1)^2 = 113 - 77
-9(x - 3)^2 + 4(y - 1)^2 = 36.
Divide through by 36:-
(1/9)(y - 1)^2 - (1/4)(x - 3)^2 = 1.
Ответ:
49 pizzas
Step-by-step explanation:
Start by writing it as a equation,
P stands for Pizza
6p +97 = 8p
Minus 6p from both sides
97=2p
Divide by 2
P= 48.5
You would need to round up, so it would be 49 pizza