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vampirchik [111]
3 years ago
13

Among the digits of pi currently known, the concentrations of each of the digits 0 - 9 are pretty much equal. however, in the fi

rst 30 digits of pi's decimal expansion, one number is conspicuously missing. which number is it?
Mathematics
1 answer:
lys-0071 [83]3 years ago
3 0
If you are using windows 10 or maybe windows 7 and above, go to the calculator and request pi. Windows 10's calculator goes up to just over 30 places.

the number that is missing is ,,, 0
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The equation 9 x 2 − 12 x + 4 = 0 9 x 2 − 12 x + 4 = 0 has how many different solutions?
Hatshy [7]

We have the equation:

9x^2-12x+4=0

so:

a=9\qquad b=-12\qquad c=4

and:

\Delta=b^2-4ac=(-12)^2-4\cdot9\cdot4=144-144=\boxed{0}

This equation has one solution.

5 0
3 years ago
How do you simplify this expression step by step using trigonometric identities?
olga55 [171]

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5 0
3 years ago
( 2x + 5 ) + ( 3x - 7
musickatia [10]

Answer:

5x-2

Step-by-step explanation:

2x+3x=5x

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7 0
3 years ago
Read 2 more answers
A movie theater has a 24​-foot-high screen located 6 feet above your eye level. If you sit x feet back from the​ screen, your vi
pantera1 [17]

Answer:

The viewing angles are as follows:

For x=5 feet, θ = 0.529 radians

For x=10 feet, θ = 0.708 radians

For x=15 feet, θ = 0.726 radians

For x=20 feet, θ = 0.691 radians

For x=25 feet, θ = 0.640 radians

Step-by-step explanation:

The viewing angle is given as:

θ = tan⁻¹(30/x) - tan⁻¹ (6/x)

where x is the distance between you and the screen.

The question is asking us to find the viewing angle θ at various distances. The distance value needs to be substituted in the above equation in place of x. So,

<u>For x=5 feet:</u>

θ = tan⁻¹(30/5) - tan⁻¹ (6/5)

  = 1.4056 - 0.8761

θ = 0.529 radians

<u>For x = 10 feet:</u>

θ = tan⁻¹(30/10) - tan⁻¹ (6/10)

  = 1.249 - 0.540

θ = 0.708 radians

<u>For x = 15 feet:</u>

θ = tan⁻¹(30/15) - tan⁻¹ (6/15)

  = 1.107 - 0.380

θ = 0.726 radians

<u>For x = 20 feet:</u>

θ = tan⁻¹(30/20) - tan⁻¹ (6/20)

  = 0.983 - 0.291

θ = 0.691 radians

<u>For x = 25 feet:</u>

θ = tan⁻¹(30/25) - tan⁻¹ (6/25)

  = 0.876 - 0.235

θ = 0.640 radians

5 0
3 years ago
What is 15% of 60. create a model to prove your answer
tamaranim1 [39]
15% = 0.15
x% of any number is 0.x * that number
so the answer is 0.15 * 60 = 9
6 0
3 years ago
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