Answer:
B Graph B and D are functions
Step-by-step explanation:
To be a function, it has to pass the vertical line test. The vertical line test says that if you move a vertical line over the graph, it can only touch the graph once at any one time to be a function.
Graph A fails the vertical line test.
Graph B passes the vertical line test
Graph C fails the vertical line test
Graph D passes the vertical line test
3 ≥ x. distribute the 2 to the 4 and 2x. then subtract the 4x from the 5x. subtract 5 from 8
This is the answer I hope this will help you
Step-by-step explanation:
EQUATION: Volume=length x width x height.
V=l×w×h
1620cm^3=9cm×9cm×xcm
1620cm^3=81cm^2 ×xcm
xcm= 1620cm^3/81cm^2
xcm= 20cm