Answer:
1/3
Step-by-step explanation:
slope of line f (m) = -3
Slope of perpendicular line to f m1 = -1/m = -1/-3 = 1/3
Answer:
x=11
Step-by-step explanation:
Answer:
C). 0.39 grams
Step-by-step explanation:
First find how many half-lifes are in 3 hours:
3 hours ÷ 20 minutes = 9 half-lifes
Find the total left:
0.5^9*200 ≈ 0.39

Scientific notation for above vLue is :
C
-28 is his debt and adding or paying +7 every week