Answer:
A and b
Step-by-step explanation: Because ....
Answer:
Common communication channels in mass communication include television, radio, social media, and print media. Examples of mass communication include commercial advertising, public relations, journalism, and political campaigning.
Step-by-step explanation:
Answer:
A
Step-by-step explanation:
Volume varies directly with the square of the radius, so:
V = k r²
When V = 80, r = 4.
80 = k (4)²
k = 5
V = 5r²
When r = 3:
V = 5 (3)²
V = 45
The flow is 45 L/min.
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https://www.tiger-algebra.com/drill/1/x-3=1/2x/
