A student scored 68, 79, and 98 on three algebra tests. what must he score on the fourth test in order to have an average grade
1 answer:
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Answer:
radius = 3 feet
Step-by-step explanation:
V = 1/3πr²h
15π = 1/3πr²·5
you can divide each side by 5π to get:
3 = r²/3
r² = 9
r = which is 3