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Mashcka [7]
3 years ago
13

What number produces an irrational number when multiplied by 1/3

Mathematics
1 answer:
docker41 [41]3 years ago
4 0

Any irrational number will remain irrational when multiplied by a rational number.

<u>Answer: Any irrational number.</u> (Like pi or the sqr of 2.)

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2x - 4 = 2(x - 2)<br> solve the following problem and identify the type of equation
Sergio [31]

Answer:

6

Step-by-step explanation:

8 0
3 years ago
Solving fp<br> Algebra 2<br> I do not understand how to solve this, could someone please explain?
Olenka [21]

f(x) =  \sqrt{x + 2}
What's The Fixed Point? Well, Let's Assume X=0, this is our point.

f(0) =  \sqrt{0 + 2}  \\ f(0) =  \sqrt{2}  \\ this \: is \: our \: fixed \: point \:  \\ (0, \sqrt{2} )
OR

f(p) =  \sqrt{p + 2}  \\  \\  or \:  \sqrt{x + 2}  = 0 \\ ( \sqrt{x + 2} ) ^{2}  =  {0}^{2}  \\ x + 2 = 0 \\ x  =  - 2
I'm unaware of the nature of the question, so here are some different ways a fixed point is found based on the merits of the question.
4 0
2 years ago
How many commuters must be randomly selected to estimate the mean driving time of Chicago commuters? We want 95% confidence that
zimovet [89]

Answer:

61 commuters must be randomly selected to estimate the mean driving time of Chicago commuters.                

Step-by-step explanation:

Given : We want 95% confidence that the sample mean is within 3 minutes of the population mean, and the population standard deviation is known to be 12 minutes.

To find : How many commuters must be randomly selected to estimate the mean driving time of Chicago commuters?

Solution :

At 95% confidence the z-value is z=1.96

The sample mean is within 3 minutes of the population mean i.e. margin of error is E=3 minutes

The population standard deviation is s=12 minutes

n is the number of sample

The formula of margin of error is given by,

E=\frac{s\times z}{\sqrt{n}}

Substitute the value in the formula,

3=\frac{12\times 1.96}{\sqrt{n}}

3=\frac{23.52}{\sqrt{n}}

\sqrt{n}=\frac{23.52}{3}

\sqrt{n}=7.84

Squaring both side,

n=61.4656

Therefore, 61 commuters must be randomly selected to estimate the mean driving time of Chicago commuters.

6 0
2 years ago
Read 2 more answers
Can someone answer 8-11 please
vampirchik [111]

Answer:

7.9

4.2

9.3

17.8

Step-by-step explanation:

8. √63

the square of 8 is 64 √63 is close to 64 so we can say it's 7.9 approximately

9. √18

the square of 4 is 16, √18 is greater than 16 so we can say it's 4.2 approximately

10. √87

the square of 9 is 81, √87 is greater than 81 so we can say the value of it is approximately 9.3

11. √319

the square of 18 is 324, √319 is smaller than 324 so we can say it's 17.8

6 0
2 years ago
Is it possible for a figure to have 90° rotational symmetry but not 180° rotational symmetry.
Gre4nikov [31]

Answer:

Well, It is but not because..rotation symmetry, and a square has -turn (or 90-degree) rotation symmetry. As you may have already observed, many figures have 180-degree rotation symmetry but no other rotation symmetry. A figure has 180-degree rotation symmetry if it looks the same when turned halfway around...Soo yeah..I think I am right, So sorry if I'm wrong.

Step-by-step explanation:

4 0
3 years ago
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