Answer:
(1) C
(2) C
(3) 4
(4) False
Step-by-step explanation:
(1) If DF = FB, then point F is called the midpoint and segments DF and FB are congruent.
(2) If ray FA bisects angle EFB, then angles EFA and AFB are congruent. If measure of angle EFA = 47 degrees, the measure of angle EFB = 47 degrees.
(3) If DF = x+2, FB = 2x+1 and DB = 15, then
DF + FB = DB
x+2+2x+1=15
3x+3=15
3x=15-3
3x=12
x=4
(4) If x=4, then
DF=4+2=6
FB=2·4+1=9
Since DF is not congruent to FB, F is not a midpoint. False
Answer: I hope it helps :)
- x=6 , y=6√3
- x =23√3 , y=23
- u =12 , v= 6
- a =18√2 , b =18
- x = 13 , y= 13
Step-by-step explanation:
1.

2.

3.

4.

5.

Answer:
Step-by-step explanation:
1. - 3x + 32 = - x - 12
-3x + x = - 12 - 32
-2x = - 44
x = 44/2 = 22
2. 8x + 16 = x + 9
8x - x = 9 - 16
7x = - 7
x = - 7/7
= - 1
3. 3x + 2 = 2x - 55
3x - 2x = - 55 - 2
x = - 57