I would say it is 4(6+11) that or 72 is the answer
The 90% confidence interval is (70 - 4, 70 + 4). The margin of error is 4%.
I honestly don't know because i'm only in sixth grade but I think that it might be 30*.
Answer:
68 cm
Step-by-step explanation:
√289 = 17
each side is 17 cm
17 * 4 = 68 cm
