The ratio of the width to the height is 3:4.
So, just multiply the width by 4/3, which gives you <span>500cm.</span>
9514 1404 393
Answer:
68%
Step-by-step explanation:
According to the empirical rule, 68% of the distribution lies within 1 standard deviation of the mean.
Here, the mean is 20 and the standard deviation is 5. The bounds on 1 standard deviation from the mean are 20±5 = [15, 25]. This is precisely the interval of interest.
68% of students wait between 15 and 25 minutes

A. Area of given figure = 280 + 77 = 357 cm²
B. length of semicircle = 22 cm
Answer: the first one is 14 and the second one is 5
Step-by-step explanation: