Answer:
Adding 3
Step-by-step explanation:
-3 + 3 = 0
0 + 3 = 3
3 +3 = 6
6 + 3 = 9
Answer:
8(6-x)
Step-by-step explanation:
factor out an 8
8*6 -8*x
8(6-x)
Answer:
see below
Step-by-step explanation:
AB = DC Given
AO = BO = OD = DC Def. of radii
ΔOAB ≅ ΔOCD SSS
x = 77° CPCTC
Answer:
21, 9
Step-by-step explanation:
If girls are x, then boys are x + 12
x + x + 12 = 30
2x + 12 = 30
2x = 18
x = 9
There are 9 girls and 21 boys
Answer:
3rd option
Step-by-step explanation:
x < 7
means that x cannot equal 7 but all values less than 7
since not equal at either end of interval use parenthesis, not brackets , then
(- ∞ , 7 ) ← is the required interval