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serg [7]
3 years ago
12

A flashlight has 7 batteries, 5 of which are defective. If 5 are selected at random without replacement, find the probability th

at all of them are defective.
Enter your answer as a fraction or a decimal rounded to 3 decimal places.


The probability of getting all of them defective batteries is________?
Mathematics
1 answer:
TEA [102]3 years ago
8 0
71.4 % chance I think is your answer. 
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How do I solve the cube root of -1331
sweet-ann [11.9K]
What number cubed equals -1331?

it is -11 because -11*-11*-11 equals to -1331
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3 years ago
Which expression is equivalent to 1/2(2x-8)<br> A) 4x− 16<br> B) x− 4<br> C) 2x− 4<br> D) x− 8
inn [45]

Answer:

B) x - 4

Step-by-step explanation:

In this question, you have to simplify the expression to get your answer.

Solve:

1/2(2x - 8)

Use the distributive property.

1/2(2x) + 1/2(-8)

x + 1/2(-8)

x - 4

Your answer would be B) x - 4

5 0
2 years ago
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You are throwing darts at a dart board. You have a 1/ 6 chance of striking the bull's-eye each time you throw. If you throw 3 ti
Bogdan [553]

B. 1/216

bc 1/6*1/6*1/6

4 0
3 years ago
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find the perimeter and diagonal of a square whose area is equal to the area of a rectangle whose length is 9m and breadth is 4m
aalyn [17]
Area\ of\ a\ rectangle:A_{\fbox{ }}=9m\times4m=36m^2\\\\a-side\ of\ a\ square\\\\Area\ of\ a\ square:A_{\fbox{}}=a^2\\\\A_{\fbox{ }}=A_{\fbox{}}\Rightarrow a^2=36m^2\Rightarrow a=\sqrt{36m^2}\Rightarrow a=6m\\\\Perimeter\ of\ the\ square:P=4a\Rightarrow P=4\times6m=\boxed{24m}\\\\Diagonal\ of\ the\ square:d=a\sqrt2\Rightarrow d=\boxed{6\sqrt2\ m}
4 0
3 years ago
A will states that 8/9 of an estate is to be divided among relatives. Of the remaining estate, 1/5 goes to the american cancer s
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8/9 - 1/5 
= 5(8/9)-9(1/5)
=(40/45)-(9/45)
=31/45
 

therefore 31/45 of the estate would go to the American cancer society 
4 0
3 years ago
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