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svetoff [14.1K]
3 years ago
14

What is the decimal equivalent of 23/9 A. 25 B. 0.39 C. 2.39 D. 2.55

Mathematics
1 answer:
Lyrx [107]3 years ago
6 0

2.55

To find a decimal you need to divide y and x (y/x)  

What I did was I divided 23/9 and got 2.55555555556. And 2.55 is closest to 2.55555555556.

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5/9*18/25<br><br> i need help
Akimi4 [234]

Answer:

\frac{2}{5}

Step-by-step explanation:

\frac{5}{9} * \frac{18}{25} = \frac{5 * 18}{9 * 25} = \frac{90}{225} = \frac{45 * 2}{45 * 5} = \frac{2}{5}

4 0
4 years ago
Really confused helppppppppp
ziro4ka [17]

Answer:

slope=100

$100 per deposit

Step-by-step explanation:

8 0
2 years ago
1.5x-6=9 what is the number for x​
Svet_ta [14]

Answer:

x=10

Step-by-step explanation:

1.5x-6=9

     +6  +6

1.5x=15

/1.5    /1.5

x=10

5 0
4 years ago
Read 2 more answers
(I really need help with this, serious answers only please!)
lesantik [10]
Part A: The answer is PR = 15.23 by Pythagorean Theorem.
The pythagorean theorem is a^2 + b^2 = c^2.
Plug in 14 for a and 6 for b to find c.

Part B: The answer is QR = 7.75. 
Using the same theorem, plug 16 in for c, 14 in for a, and then you can find b.
6 0
3 years ago
The equation d=11cos(8pi/5 t) models the horizontal distance, d, in inches of the pendulum of a grandfather clock from the cente
charle [14.2K]

Answer:

The time it takes for the pendulum to swing from its rightmost position to its leftmost position and back again is 1.25 seconds.

Step-by-step explanation:

Given the equation

d = 11cos( \frac{8\pi}{5}*t)-----------Equation 1

where d, in inches of the pendulum of a grandfather clock from the center.

Comparing with the standard equation of an oscillating pendulum bob.

d = Acos (wt + \alpha ) ----------Equation 2

         where ω =  angular velocity

                     t =  time taken

                     α =  The angular displacement when t = 0

Comparing equation 1 and 2,

α = 0

w =\frac{8\pi }{5}

Recall that w = 2\pi fTherefore,[tex]2\pi f = \frac{8\pi }{5} \\\\f = \frac{4}{5}[/tex]

f = 0.8 Hertz

Recall that f = \frac{1}{T}

T = \frac{1}{0.8}

T = 1.25 seconds

Therefore, the time it takes for the pendulum to swing from its rightmost position to its leftmost position and back again is 1.25 seconds.

5 0
3 years ago
Read 2 more answers
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