Always true, sometimes true, never true. 1) the centroid of a triangle is a point where the medians intersect.

2) a line of reflection is also a line of symmetry

3) a figure with rational symmetry can be rotated x degrees about a one of its vertices and the resulting image lines up perfectly with the original image.

4) the centroid of a triangle is located inside the triangle

5) all points on the angle bisector of
6) if there exists a transformation that takes triangle QRS to triangle XYZ then the triangles are congruent

7) the inscribed circle of a triangle intersects all three of the triangles vertices.



TRUE OR FALSE:

8) the base is the length of the altitude

9) a median of a triangle cuts the original triangle into two smaller triangles, each of whose area is half of the original triangle

10) the circumscribed circle lies inside the triangle and touches each of the sides

11) the incenter of a triangle is a point where the angle bisectors intersect

I really need help on these ASAP, thank you!!

the answers for numbers 1,2 and 4 are all true :)

1: True

2: True

4: True

answer:

payment just for service  

→

$

87.12

payment for service including tax

→

$

94.09

explanation:

service only with 20% tip  

→

$

72.6

(

1

+

20

100

)

=

$

87.12

in the opening of the question the word 'service' is associated only with the pretax value.

the closing part of the question asks: how much did she pay for the  

service

−−−−−−  

so technically the answer is  

→

$

72.6

(

1

+

20

100

)

=

$

87.12

however, the intention of the question provider may have been that your answer is to be  

$

87.12

(

1

+

8

100

)

=

$

94.09

to 2 decimal places.

'

payment just for service  

→

$

87.12

payment for service including tax

→

$

94.09

tony b

mar 21, 2017

answer:

trying to explain it another way

explanation:

service charge  

.

→

$

72.60

20% tip  

20

100

×

$

72.60

=

$

14.52

−−−−−−  

←

add

$

87.12

tax  

8

100

×

$

87.12

=

$

6.97

−−−−−  

←

add

$

94.09

related questions

to determine the unit cost your would divide the total cost by the number sold.

7 bagels for $4.41       $4.41/7 = $.63 each at fresh side

5 bagels for $3.60         $3.60/5 = $.72 each at value mart