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dezoksy [38]
3 years ago
10

The maximum speed of the Tupolev Tu-144 airliner is 694m/s what is the speed in kilometers per hour

Mathematics
1 answer:
saw5 [17]3 years ago
6 0
Best Answer:<span>  </span><span>694 m = 0.694 km 
1hr = 3600 s 
3600 × 0.694 = 2498.4 km/h</span>
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The numbers of teams remaining in each round of a single-elimination tennis tournament represent a geometric sequence where an i
Anit [1.1K]

Answer:

a_n = 128\bigg(\dfrac{1}{2}\bigg)^{n-1}

Step-by-step explanation:

We are given the following in the question:

The numbers of teams remaining in each round follows a geometric sequence.

Let a be the first the of the geometric sequence and r be the common ration.

The n^{th} term of geometric sequence is given by:

a_n = ar^{n-1}

a_4 = 16 = ar^3\\a_6 = 4 = ar^5

Dividing the two equations, we get,

\dfrac{16}{4} = \dfrac{ar^3}{ar^5}\\\\4}=\dfrac{1}{r^2}\\\\\Rightarrow r^2 = \dfrac{1}{4}\\\Rightarrow r = \dfrac{1}{2}

the first term can be calculated as:

16=a(\dfrac{1}{2})^3\\\\a = 16\times 6\\a = 128

Thus, the required geometric sequence is

a_n = 128\bigg(\dfrac{1}{2}\bigg)^{n-1}

4 0
3 years ago
What is the value of x? How do you set up to solve?
nlexa [21]

Answer:

3x-22=80+x

3x-x=80+22

2x=102

x=51

Step-by-step explanation:

the exterior angle is (3x-22) and then is equal to sum of 80 and x

and then we get 51

6 0
2 years ago
Read 2 more answers
: If 10 less than 5 times a number is two more than 3 times the number, then the number is ​
Feliz [49]

Answer:

<h2><u><em>x = 1</em></u></h2>

Step-by-step explanation:

If 10 less than 5 times a number is two more than 3 times the number, then the number is ​

10 - 5x = 2 + 3x

10 - 2 - 5x - 3x = 0

8 - 8x = 0

x = 1

---------------

check

10 - 5 * 1 = 2 + 3 * 1

5 = 5

the answer is good

6 0
2 years ago
Determine which ordered pair makes the equation true.<br> 2x + y = 11
slavikrds [6]
There is no one ordered pair that makes the equation true, this is a line which has infinitely many ordered pairs that are true...

2x+y=11  subtract 2x from both sides and you have the line in slope intercept form..

y=11-2x

For any real given value of x, you will get one real unique corresponding value for y, resulting in infinitely many unique (x,y) values, points, or ordered pairs, satisfying the given equation.

I assume that you were given "choices" to pick from because of the above reality.  So if any of your choices does not satisfy y=11-2x it is not an ordered pair satisfying the equation.
4 0
3 years ago
Please help me on this question
Ierofanga [76]

Answer:

please mark my answer brainliest

Step-by-step explanation:

  1. 11 students
  2. 26 students
  3. that 2 small divisions =1 unit =1 student
6 0
3 years ago
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