Given that S<span>am's distribution of meal costs has a mean of $9 and a standard deviation of $3, this means that the range of Sam's meal cost that are within one standard deviation is given by ($9 - 3, $9 + 3) = ($6, $12).
Given that Sam </span><span>always tips the server $2 plus 10% of the cost of the meal, this means that when the cost of the meal is $9, Sam tips $2 + (0.1 x 9) = $2 + $0.9 = $2.90
Therefore, the mean of the distribution of Sam's tips is $2.90
Similarly, the </span><span>range of Sam's tips that are within one standard deviation is given by ($2 + 0.1(6), $2 + 0.1(12)) = ($2 + 0.6, $2 + 1.2) = ($2.6, 3.2) = ($2.9 - $0.3, $2.9 + $0.3)
Therefore, </span><span>the standard deviation of the distribution of Sam's tips is $0.3</span>
Answer:
The watermelon has fallen 15.53625m
Step-by-step explanation:
x=vi*t+.5*a*t^2
x=3*1.5+.5*9.81*1.5^2
x=15.53625m
Answer:
Below,...
Step-by-step explanation:
1/10 = 25/250
3/25 = 30/250
25/250 and 30/250
You said FIRST,... is there a second? if not don't worry 'it,... I's just wondering!
Thanks,... Chow,...!
Answer: See explanation
Step-by-step explanation:
Let the base be represented by x.
Therefore, the height will be = 3 × x = 3x
Since Area of a triangle = 1/2 × base × height
1/2 × x × 3x = 73.5
3x²/2 = 73.5
3x² = 73.5 × 2
3x² = 147
x² = 147/3
x² = 49
x = ✓49
x = 7
Base = 7cm
Height = 3 × 7 = 21cm
I believe x = 32 because it is an equalateral triangle meaning each angle is 60 degrees so the equasion is 2x-4=60.
