Answer:
choice 2) area = 319.2 in²
Step-by-step explanation:
triangular ends = 6.9 x 8 = 55.2
sides = 3 x 8 x 11 = 264
264 + 55.2 = 319.2 in²
4x + 3y= 12
4x + 3*0= 12, x-int= 3
4*0 + 3y= 12, y-int= 4
The new girth is 22 inches; the reference girth is 20 inches. The weight is proportional to the girth, so the reference weight will get multiplied by 22/20 = 11/10.
Step-by-step explanation:
Answer:
I cannot see very well can you tell me the answer
Step-by-step explanation:
Answer:
68% of the sample can be expected to fall between 28 and 32 cm
Step-by-step explanation:
The Empirical Rule states that, for a normally distributed random variable:
68% of the measures are within 1 standard deviation of the mean.
95% of the measures are within 2 standard deviation of the mean.
99.7% of the measures are within 3 standard deviations of the mean.
In this problem, we have that:
Mean = 30
Standard deviation = 2
What proportion of the sample can be expected to fall between 28 and 32 cm
28 = 30-2
28 is one standard deviation below the mean
32 = 30 + 2
32 is one standard deviation above the mean
By the Empirical Rule, 68% of the sample can be expected to fall between 28 and 32 cm
