Answer:
x = -3
y = -1
Step-by-step explanation:
in the given question :-
=》x - 4y = 1
=》x = 4y + 1
now replacing the value of x as ( 4y + 1 ) in equation (2)
=》3x + 2y = -11
=》3 (4y + 1) + 2y = -11
=》12y + 3 + 2y = -11
=》14y = -11 - 3
=》y = -14 ÷ 14
=》y = -1
now, putting the value of y in equation (1)
=》x - 4y = 1
=》x - ( 4 × -1 ) = 1
=》x + 4 = 1
=》x = 1 - 4
=》x = -3
Hello,
y=x²-10x+7=x²-2*5x+25-25+7=(x-5)²-18
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Answer:
144
Step-by-step explanation:
If you multiply 4 by 12, then add 100, you get 144 which is the area.
16 - x = 4
16 - 12 = 4
x = 12
