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aleksley [76]
3 years ago
6

Which of the following are examples of irrational numbers?

Mathematics
2 answers:
andreyandreev [35.5K]3 years ago
5 0
√4 + √16 = 2 + 4 = 6   <--- rational
√5 + √36 = √5 + 6   <--- irrational 
√9 + √24 = 3 + √24   <--- irrational
2 * √4 = 2 * 2 = 4   <--- rational 
√49 * √81 = 7 * 9 = 63   <---rational
3√12 = 3√(4 * 3) = (3 * 2)√3 = 6√3    <---irrational

Hope this helps ^-^
Ilya [14]3 years ago
5 0

Answer:

Step-by-step explanation:

(A) The given expression is:

\sqrt{4}+\sqrt{16}

which can be written as:

2+4=6 which is a rational number.

(B) The given expression is:

\sqrt{5}+\sqrt{36}

which can be written as:

\sqrt{5}+6 which is an irrational number.

(C) The given expression is:

\sqrt{9}+\sqrt{24}

which can be written as:

3+\sqrt{24} which is an irrational number.

(D) The given expression is:

2{\times}\sqrt{4}

which can be written as:

2{\times}2=4 which is a rational number.

(E) The given expression is:

\sqrt{49}{\times}\sqrt{81}

which can be written as:

7{\times}9=63 which is a rational number.

(F) The given expression is:

3\sqrt{12}

which can be written as:

6\sqrt{3}which is an irrational number.

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the value of a is 2 bc by looking at the graph a normal parabola of x^2 would bc followinf the 1-3-5 rule but this does not

from the vertex it goes over 1 and up 2







6 0
3 years ago
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To compare two products such as colas, a random sample is selected to taste two types of colas (A and B). Each selected subject
Nadya [2.5K]

Answer: The sample size would be needed = 385

Step-by-step explanation:

Let p be the prior population proportion.

Margin of error = E

When not estimate of p is given , the formula to calculate the minimum sample size <em>n</em> = 0.25(\dfrac{z^*}{E})^2 , where z* = critical value for given confidence interval.

Here z* for 95% confidence level is 1.96.

E=5%=0.05

Then n=0.25(\dfrac{1.96}{0.05})^2\approx385

Hence, the sample size would be needed = 385

8 0
3 years ago
Help?! Will mark brainliest
ycow [4]

Answer:

Number 3 is x=1.8

Number 4 is x=45

6 0
3 years ago
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PLEASE HELP PLEASEEEEE
gulaghasi [49]

Answer:

Answer:

5.46π cm³

Step-by-step explanation:

Volume of sphere= 4/3πr³

= 4/3×π×(1.6)³ cm³

=5.46π cm³

hope this helped you!

4 0
3 years ago
<img src="https://tex.z-dn.net/?f=24x%5E%7B2%7D%2Bbx%5E%7B2%7D%20%3D25x%5E%7B2%7D" id="TexFormula1" title="24x^{2}+bx^{2} =25x^{
Liula [17]

Answer:

x = 0

Step-by-step explanation:

Subtract 25x^2 from both sides

24x^2 + bx^2 - 25x^2 - 25x^2

Simplify

bx^2 - x^2 = 0

Factor bx^2 - x^2: x^2(b - 1)

bx^2 - x^2

Factor out common term x^2

= x^2 (b - 1)

x^2(b - 1) = 0

Using the Zero Factor Principle: If ab = 0 then a = 0 or b = 0

x^2 = 0

Apply rule x^n = 0   x = 0

x = 0

8 0
3 years ago
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