Answer: 
Step-by-step explanation:
<u>Given:</u>
The coordinates of Point A: (8, 9)
The coordinates of Point B are unknown: (x, y)
The distance from A to B is 10 units
Then, using the distance formula:
Therefore,
The value of 1 in 178 is 100 since it is in the hundreds place. The value of 7 in 178 is 70 and the value of 8 in 178 is 8. The hundreds place carries numbers from 1 to 9. Once you get to 10, you add a digit to the number such that you now have four total numbers and the first digit is in the thousands place.
The answer is 2 cause you have to do the asides individually
ΔACD is similar to ΔBCD by AA similarity theorem
AD/AC = BD/BC
x/5 = 4.2/6
6x = 21
x = 3.5
Hope this helps! ;)
