Give a counterexample for the statement all square roots are irrational numbers explain your reasoning

2 answers:

8 0

Not all square roots are irrational. This can be proven by finding the perfect square roots. The sqrt. of 16, 25, and 26, for example, the answers are all rational numbers.

I hope this is what you are asking for; let me know if you need anythings else :)

konstantin123 [22]3 years ago

4 0

An irrational number is a number that has an everlasting decimal (9.34560292348857485...). (If the decimal repeats, it is not irrational. 9.476666666...)
This is false because the square root of an even number are not irrational.
The square root of 16 is 4. The square root of 144 is 12.

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If a = 5, b = 5 and c = 10, what is the value of ac / 2b ?

Sophie [7]

Answer:

The answer is 5 .

Step-by-step explanation:

You have to substitute the values of a, b and c into the expression :

$\frac{ac}{2b}$

Let a = 5,

Let b = 5,

Let c = 10,

$\frac{5 \times 10}{2 \times 5}$

$= \frac{50}{10}$

$= 5$

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3 years ago

Twenty-six students apply to serve as an usher at a school function. Eight of the those applying are freshmen, 7 are sophomores,

Gelneren [198K]

Answer:

Step-by-step explanation:

from usatestprep:

The situation is not an example of uniform probability because freshmen, sophomores, juniors, and seniors do not have equal probabilities of being selected.; Uniform probability → equal probability of being selected

P(freshman) =

; P(sophomore) =

7 /

; P(junior) =

6 /

; P(senior) =

5 /

; unequal probabilities → not uniform

6 0

3 years ago

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