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V125BC [204]
3 years ago
8

The first,third and fourth terms of proportion are 15,30and 14 respectively.find the second term

Mathematics
1 answer:
elixir [45]3 years ago
3 0

Answer:

x=7

Step-by-step explanation:

let the second term be <em>x</em>,

now,

\frac{15}{x} =\frac{30}{14} \\15*14=30x\\210=30x\\thus, \frac{210}{30} =7

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Step-by-step explanation:

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If two students from this college are selected at random, what is the probability that they are both males?
igor_vitrenko [27]

Answer:

P(A_1 and A_2) = P(A_1) *P(A_2)= 0.3*0.3 =0.09

Step-by-step explanation:

Assuming this problem :"Only 30% of the students in a certain liberal arts college are males. If two students from this college are selected at random, what is the probability that they are both males?"

Previous concepts

An independent event is an "event that has no connection to another event's chances of happening ". For this case we can assume that if one person is male and if we select another one the probability that this one would be male or female is totally indepedent from the first selection.

When we have two independent events let's say A and B and we want to find the probability that both events occurs at the same time we can use the following formula:

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Solution to the problem

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On this case we want the probability that both would be males. And we can express this like this on math terms:

P(A_1 and A_2)

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5 0
3 years ago
A rectangular window is topped with a semicircle the height of the rectangle part is 1 more than 3 times its width W meters whic
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Answer:

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Step-by-step explanation:

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Step-by-step explanation:

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75 Points!
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Answer:

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Step-by-step explanation:

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