Given that Bo is the median of AABC, and that ABC is isosceles, congruence postulate SSS can be used to prove which of the following?
A
А
D
A. ABC is an equilateral triangle
B. BAD = 45
C. ABC ABCD
D. BAD ABCD

9)  2x - 9 < 7

Add 9 to both sides.

2x < 7 + 9

Simplify.

2x < 16

Divide both sides by 2.

x < 8

10)  Go through each answer choice & check.

a)  4n + 11 > -9

Subtract 11 from both sides.

4n > -9 - 11

Simplify.

4n > -20

Divide both sides by 4.

n > -5

(a) is incorrect.

b)  4n + 11 < -9

Subtract 11 from both sides.

4n < -9 - 11

Simplify.

4n < -20

Divide both sides by 4.

n < 5

(b) is incorrect

c)  -4n + 11 <-9

Subtract 11 from both sides.

-4n < -9 - 11

Simplify.

-4n < -20

Divide both sides by -4.

n > 5

(c) is incorrect

d)  -4n + 11 > -9

Subtract 11 from both sides.

-4n > -9 - 11

Simplify.

-4n > -20

Divide both sides by -4.

n < 5

(d) is correct

~Hope I helped!~