The diameter is twice the radius (D=2R), then
Answer: it is invalid
Step-by-step explanation: it is invalid because the data table has 30 out of 100 people stating that they prefer to view movies in theater. This does not have the same ratio as 300 out of 400, and would only work had he said 300 out of 1000. Thus, he is incorrect in his inference.
Answer:
F
Step-by-step explanation:
if you do the math you end up with 49 which is a perfect square of 7
