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asambeis [7]
3 years ago
8

Justify each step with an algebraic property. 16+x=12

Mathematics
2 answers:
kodGreya [7K]3 years ago
7 0
An easy way to answer this is to subtract 16 from 12, which results in -4/negative four.
lana [24]3 years ago
6 0
-4 would be the correct answer to the problem
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Please help me with this I don’t understand
Radda [10]

Decreased by means " -".

11.4 -15.7 = -4.3

Answer A.

7 0
3 years ago
Read 2 more answers
Naval intelligence reports that 99 enemy vessels in a fleet of 1818 are carrying nuclear weapons. If 99 vessels are randomly tar
oee [108]

Answer:

0.001687 = 0.1687% probability that no more than 1 vessel transporting nuclear weapons was destroyed.

Step-by-step explanation:

The vessels are destroyed and then not replaced, which means that the hypergeometric distribution is used to solve this question.

Hypergeometric distribution:

The probability of x successes is given by the following formula:

P(X = x) = h(x,N,n,k) = \frac{C_{k,x}*C_{N-k,n-x}}{C_{N,n}}

In which:

x is the number of successes.

N is the size of the population.

n is the size of the sample.

k is the total number of desired outcomes.

Combinations formula:

C_{n,x} is the number of different combinations of x objects from a set of n elements, given by the following formula.

C_{n,x} = \frac{n!}{x!(n-x)!}

In this question:

Fleet of 18 means that N = 18

9 are carrying nuclear weapons, which means that k = 9

9 are destroyed, which means that n = 9

What is the probability that no more than 1 vessel transporting nuclear weapons was destroyed?

This is:

P(X \leq 1) = P(X = 0) + P(X = 1)

In which

P(X = x) = h(x,N,n,k) = \frac{C_{k,x}*C_{N-k,n-x}}{C_{N,n}}

P(X = 0) = h(0,18,9,9) = \frac{C_{9,0}*C_{9,9}}{C_{18,9}} = 0.000021

P(X = 1) = h(1,18,9,9) = \frac{C_{9,1}*C_{9,8}}{C_{18,9}} = 0.001666

Then

P(X \leq 1) = P(X = 0) + P(X = 1) = 0.000021 + 0.001666 = 0.001687

0.001687 = 0.1687% probability that no more than 1 vessel transporting nuclear weapons was destroyed.

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3 years ago
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5cm ahahhaa easy omg wr have
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3 years ago
Which equation represents the radius of a sphere as a function of the volume of the sphere?
boyakko [2]
V ,= 4/3 πr³


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3V/4=r³

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Does the number -2.675 belong to the set of integers
tankabanditka [31]

Answer:

yes

Step-by-step explanation:

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