The student can choose any one of 3 sandwiches. For each of those . . .
He can choose any one of 3 soups. For each of those . . .
He can choose any one of 4 salads. For each of those . . .
He can choose either one of 2 drinks.
Total possibilities = (3 x 3 x 4 x 2) = <em><u>72 different lunches</u></em>.
Answer:
3
Step-by-step explanation:
First, simplify (-5) - (-10).
-5 + 10 = 5
So, 15 divided by 5 is 3
Answer:
Step-by-step explanation:
Here, d=12 m
r=12/2=6 m
Now,
Circumference(c)=2πr
=2π6
=12π m
Part (a)
The raw score is x = 25. The mean and standard deviation are mu = 45 and sigma = 13.8 respectively.
The z score is computed with the formula below
z = (x-mu)/sigma
z = (25-45)/13.8
z = -1.449275 approximately
z = -1.45 is the final answer
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Part (b)
We want the z score to be larger than 2. So z > 2.
This is the same as wanting the expression (x-mu)/sigma to be larger than 2
(x-mu)/sigma > 2
(x-45)/13.8 > 2
x-45 > 2*13.8
x-45 > 27.6
x > 27.6+45
x > 72.6
If a customer's age is greater than 72.6 years, then this means they have a z score greater than 2. We can say they are more than 2 standard deviations above the mean.
If you need a whole number, then I'd round up to 73. Or you could pick any age larger than this.