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ycow [4]
3 years ago
10

El 1% de las videocámaras vendidas por la Phil´s Photo Shop, tiene un defecto en su estuche. Se seleccionan al azar cuatro estuc

hes de lo vendido recientemente. Encuentre la probabilidad de que exactamente uno esté defectuoso
Mathematics
1 answer:
Volgvan3 years ago
8 0

9514 1404 393

Answer:

  3.88%

Step-by-step explanation:

The probability that 1 is defective and 3 are not (out of four) is ...

  P(1 of 4) = 4(0.01)(0.99)^3 ≈ 0.0388 = 3.88%

__

The multiplier of 4 comes from the number of ways that 1 can be chosen from 4.

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a tree rhar is 8 feet tall is growing at a rate of 2 feet each year a tree is 13 feet tall is growing at a rate of 1 foot each y
Vlad [161]

Answer:

  5 years

Step-by-step explanation:

The shorter tree is 5 ft shorter, but is growing 1 ft/year faster. It will make up the difference of 5 ft in (5 ft)/(1 ft/year) = 5 years.

8 0
3 years ago
(2a²-a²-7a+2)÷(a-2) Answer Please ​
ikadub [295]

Answer:

2a^2 + 3a - 1 ,

Step-by-step explanation:

I am assuming you mean

2a^3-a^2-7a+2

By long division:

a - 2 ) 2a^3 -   a^2 - 7a +  2 ( 2a^2 + 3a - 1 <------- Quotient

          2a^3 - 4a^2

                     3a^2 - 7a

                     3a^2 - 6a

                                -a + 2

                                -a + 2

                                 . . . . .

7 0
2 years ago
What is the value of y circle the correct answer 62y = 434<br><br> 1.<br> Y=7<br><br> 2.<br> Y=5
MrRa [10]
When we solve for y, we want to isolate y by itself. To do so in this equation, we can divide both sides of the equation by 62...

y = 434/62 = 7
8 0
3 years ago
Read 2 more answers
Work out the value of angle x 24 degrees​
stich3 [128]

Answer:

180=2x+ 24( angles opposite to equal sides)

156/2=x

x=78

Step-by-step explanation:

5 0
3 years ago
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The list shows the price of a gallon of gasoline at 11 gas stations. $4.20, $4.09, $4.35, $4.39, $4.79, $4.55, $4.50, $4.22, $4.
Sauron [17]
The range of a list of numbers is the biggest number minus the smallest number. In this case, it is $4.79-$4.09 which equals $0.70.

Don't forget to follow me and vote brainliest!!!
4 0
3 years ago
Read 2 more answers
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