Geometry help. Please show work?

Question

An equilateral triangle has an area of 9 times the sq root of 3.
How many inches is the perimeter?
9
9 times the sq. root of 3
18
18 times the sq. root of 3
What's the image of (5, -2) when it's reflected across the line y=-x?
5,10
5,1
-5,-10
-5,-1
What's the next # in the sequence? 0,1,-1,3,-5,11,-21,...
-64
-43
-43
64
For which conditional statement is the contrapositive true?
1.If a polygon has 4 sides then it's a quadrilateral
2.If a polygon has 4 sides then it's not a quadrilateral
3.If a polygon doesn't have 4 sides then it's a quadrilateral
4.If a polygon's a quadrilateral then is doesn't have 4 sides

According to the Law of Detachment, whis is a logical from these 2 statements: IF the temp is 95 degrees outside, then Jo will run her AC. The temp is 98
1.The temp is above 95
2.Jo will not run her AC
3.The temp is not 95
4.Jo will not run her AC
What's the slope of a line that is || to the line whoes equation is y-10= - 4(x+1)
-10
-4
-1/4
1/4

Answer 1

A= s^2sqrt(3)/4
So s = 6 and P = 18

None of given answers is correct

Answer should b e +43 but it is not one of given answers

The 1st statement

The 1st statement is correct

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