Answer:
B
Step-by-step explanation:
The number of combinations of n objects taken r at a time is determined by the following formula: C(n,r)=n!/(n−r)!
She will save $123 if she byes the computer online
Answer:
-(-9) is 9
Step-by-step explanation:
-(-9)
(when there are two negatives multiplyed with eachother, the product will be postive)
+ 9
+ 9 = 9
Answer:
C is most definetly the correct answer
Step-by-step explanation:
First you always start with your parentheses then you take 18z+2y+-4z=-22z+y
We can use two different methods to find our missing angle:
Subtract the two known angles from 180° :
Plug the two angles into the formula and use algebra: a + b + c = 180°
