Answer:
C. O.5s
Step-by-step explanation:
If the wave length is 100m and it goes at a speed of 200m/s then it will only take 0.5 seconds because 100 is half of the speed of 200
Answer:
it's A because it's not B or C
Answer:
x = 30
Step-by-step explanation:
-6 + 24 = x - 24 + 24
x = 24 + 6 - 24 - 24
x = 30 - 0
x = 30
Answer:
first and second one, and fourth one
Step-by-step explanation:
Find the vertex.
x=b/-2a
12/-2(1)
x=-6
then plug into equation
-6^2+12(-6)+6
36-72+6=-30
(-6,-30)
