Step-by-step explanation:
You can use the Pick's theorem:
where
<em>i</em><em> - number of lattice points in the interior located in the polygon</em>
<em>b</em><em> - number of lattice points on the boundary placed on the polygon's perimeter</em>
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Step-by-step explanation:
multiplying the 2nd eqn by 9 we get,
9x+9y=81
then,subtracting 1st and 2nd eqn
9x+5y=41
9x+9y=81
- - -
__________
0. -4y=-40
we get y = 10
then we get x=9-y
x=9-10
x= -1
so x is -1 and y is 10
Answer:
f ( x ) = 4tan ( x )
Step-by-step explanation:
7.75% of 20
.0775 (20) = 1.55....its not A
7.75% of 25
.0775(25) = 1.94....not B
7.75% of 10
.0775(10) = 0.775 (BINGO...here it is)
7.75% of 18
.0775(18) = 1.40..not D
Answer:
D
Step-by-step explanation:
A is wrong because 8 x 5 = 40
40 < 67
B is wrong because 8 x 6 = 30
48 < 67
C is wrong because 8 x 8 = 64
64 < 67
D is correct because 72 > 67
Hope this helps!! ♥︎
