Worried that she would be late to an early morning exam, a student set TWO alarm clocks. Suppose Alarm Clock 1 is 60% reliable, meaning it will wake her up 6 times out of 10. Suppose Alarm Clock 2 is 90% reliable. What is the chance at least one of the alarms will wake her up? (a) .96 (b) .90 (c) .75 (d) .54

A. 0.96

Step-by-step explanation:

To find the probability of atleast one waking her; P(at least one) = 1 - P (none)

P of alarm clock 1 is reliable = 0.60

P of alarm clock 1 not reliable = 0.40

P of alarm clock 2 is reliable = 0.90

P of alarm clock 2 not reliable = 0.10

0.06 + 0.36 + 0.54 = 0.96

CHECK THE ATTACHED PICTURE TO SEE DETAILED SOLUTION TO THE ANSWER.

answer: the price of one pound cabbage = $ 0.8

the point (10,8) represents that the cost of 10 pounds cabbage is $ 8

step-by-step explanation:

since, here is a proportional relation between the number of pounds of cabbage (x) and the price in dollars (y).

therefore, we can write,

⇒ y = k x

where k is the constant of proportionality.

now, point (5,4) is in the line.

thus, it will satisfies the above equation of line.

⇒ 4 = 5 k

⇒ k = 0.8

thus, the equation of the line is,

y = 0.8 x

a) for x = 1,

y = 0.8

therefore, the cost of one pound of cabbage is 0.8 dollars.

b) in the below graph (10,8) represents that the cost of 10 pounds of cabbage is 8 dollars.

your answer would be 12