Answer:
Well a midpoint makes the cutter segment or Line in exactly in half. So the two lines cutted are equal. In this case t is the midpoint. PT and TQ are equal. So you have two expressions, make then equal to each other since they are congruent.
6x+4=8x-8
12=2x
x=6
Now PT is 6x+4
So we subsitute x for 6 since x=6
6*6+4
40
PT is 40
Answer:
The first step is to replace the value of x from the first equation with x in the second equation:
x=y-7
3x+15y=-1
3(y-7)+15y=-1
3y-21+15y=-1
18y=-1+21
18y=20
y=
= 
x=

x=
I think you substitute 189 for the letter t.
You actually do substitute.
Answer:
89
Step-by-step explanation:
<h2>How do you find the range of a data set?</h2><h3><u>first put you're data set from lowest to highest, then subtract your highest by your lowest value</u></h3><h3>Data:</h3>
8, 8, 12, 41, 64, 97
<u>We can clearly see that our highest value is 97, and our lowest in 8.</u>
<h3>97 - 8 = <u>89</u></h3><h2>Hence our range of data is 89.</h2>
Answer:
A). 2(2n+7)+3n
B). 2(2(8)+7)+3(8)
2(16+7)+ 24
2(23)+24
46+24
70