Answer:
$56
Step-by-step explanation:
4(10)+3(5)+1(1)
40+15+1 = 56
Answer:
The height of the glass in the actual is 10 cm
Step-by-step explanation:
we know that
The scale of the drawing is
That means ------> 2 units in the drawing represent 2.5 cm in the actual
Find out the height of the glass in the actual
using proportion
Let
x -----> the height of the glass in the actual
therefore
The height of the glass in the actual is 10 cm
Answer:
20
Step-by-step explanation:
Given
2x² - y ← substitute x = 3 and y = - 2 into the expression
= 2(3)² - (- 2)
= 2(9) + 2
= 18 + 2
= 20
Answer:
0.069 = 6.9% probability that a customer has to wait more than 4 minutes.
Step-by-step explanation:
Exponential distribution:
The exponential probability distribution, with mean m, is described by the following equation:
In which is the decay parameter.
The probability that x is lower or equal to a is given by:
Which has the following solution:
In this problem, we have that:
So
Find the probability that a customer has to wait more than 4 minutes.
Either the customer has to wait 4 minutes or less, or he has to wait more than 4 minutes. The sum of the probabilities of these events is decimal 1. So
We want P(X > 4). So
0.069 = 6.9% probability that a customer has to wait more than 4 minutes.