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3 years ago

Solving special systems.

Mathematics

1 answer:

Trava [24]3 years ago

6 0

Answer:

The system has no solutions

Step-by-step explanation:

Here, we want to solve the given equation systems

we can simply rewrite the second equation as;

y = 7-8x

So, let’s equate the two y

-8x + 6= 7-8x

As we can see, we have -8x on both sides of the equation and this means that there is no solution to system

This is because no value of x will make it that the addition of 6 to -8x will

be same as that of adding 7

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In the following exercises, identify whether each number is rational or irrational.

klasskru [66]

Answer:

(a) √25 rational

(b) √30 irrational

Step-by-step explanation:

Note : only perfect squares have rational roots

25 = 5² then 25 is a perfect square

therefore √25 = 5 is a rational number

30 cannot be written in the form a² where ‘a’ I start a natural number then 30 is not a perfect square

Therefore √30 is irrational.

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2 years ago

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3 years ago

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erik [133]

Answer: Unlikely

Step-by-step explanation:

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We know that the probability of any event lies between 0 and 1.

If probability of occurring event is 0 then the event is impossible.
If probability of occurring any event is 1 then the event certain.
If probability of occurring any event lies between 0.5 and 1 then the event is said to be likely.
If probability of occurring any event lies between 0 and 0.5 then the event is said to be unlikely.

Since, 0.075 lieas between 0 and 0.5, therefore the event is said to be unlikely.

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