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Scorpion4ik [409]
3 years ago
13

Help pls ????????!!!!!!

Mathematics
1 answer:
7nadin3 [17]3 years ago
6 0

Answer:

let the number of steps taken by friend 1, 2 and 3 be: x, y and z respectively

we know that the mean of the total steps taken by all the friends is 10,350

Since the formula for mean is: sum of all values / number of values

here, the total values is the total number of steps taken

So,

steps taken by friend 1  +steps taken by friend 2 +steps taken by friend 3 +steps taken by friend 4 +steps taken by friend 5 +steps taken by friend 6

all that divided by 6 will give us the mean

so,  <em>7800 + 8000 + 9800 + x + y + z / 6</em>

<em>(25600 + x + y + z)/6 = 10350</em>

<em>25600 + x + y + z = 10350 * 6</em>

<em>x + y + z = 62100 - 25600</em>

x + y + z = 36500

So since the sum of x, y and z is 36500,

we can say that the average value of x , y and z is 12167 (36500/3)

So the next thing to make an equation out of is Median

to find the median, we need to arrange the values in any order you like, i will arrange in descending order

so since the estimated value of all x , y and z is greater than the greatest known value:

x > y > z > 9800 > 8000 > 7800

Since this set of values has an even number of values, we will take the average of the middle 2 values as the median

<em>(9800 + z)/2 = 10000</em>

<em>9800 + z = 20000</em>

z = 10200 -------- we have found one of the three values! getting closer

Now, the final equation will be found from the range

since we already have sorted our data, and the difference of the highest and lowest is the range

x > y > z > 9800 > 8000 > 7800

So, x - 7800  = 7500

x = 15300 ------- now that we have x and z, we can use the first equation to find the value of y and we will be done!

<em>x + y + z = 36500</em>

<em>replacing the values</em>

<em>15300 + y + 10200 = 62100</em>

<em>y = 36500 - 25500</em>

<em>y = 11000</em>

So the three remaining friends walked

15300, 11000 and 10200 steps

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Determine whether the function f (x) = x + 9x” is even, odd or neither.
rusak2 [61]

Answer:

Step-by-step explanation:

This is even because if we put x=1 then we get 10 if we put x=2 then we get 20 and so on. So all these are even numbers.

8 0
3 years ago
What is the domain and range of the relation shown in the table?
TEA [102]

Answer:

<u>domain: {10,15,19,32}</u>

<u>range:{5,9,-1}</u>

Step-by-step explanation:

  • As we know domain is the values of input and range is the values of output.
  • Here , x is the input and y is the output.
  • \left[\begin{array}{cc}x&y\\10&5\\15&9\\19&-1\\32&5\end{array}\right]
  • Thus the input values according to the given problem is : 10 ,15 , 19, and thus ,

⇒<em>The domain would accordingly be these four numbers : 10 , 15 , 19 , 32.</em>

  • <u>Note that we donot have any information regarding the other values of x.</u>
  • The range is : { 5,9,-1 } only as the 5 is repeated in two cases .
  • Range is unique and there must be not repetition. Thus the apt answer would be :

<em>domain: {10,15,19,32}</em>

<em>range:{5,9,-1}</em>

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3 years ago
What is the correct way to classify the figures shown below?
Natali [406]
They would be considered similar triangles.
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Paul [167]

Answer:

D. 28

Step-by-step explanation:

This answer is it because 28 is greater than 25.

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Suppose that a nonnegative integer solution to the equation u + v + w + x + y = 12, thought of as a 5-tuple (u,v,w,x,y) is chose
son4ous [18]

Answer:0.2

Step-by-step explanation:

Given

u+v+w+x+y=12

total solution for u+v+w+x+y =12 is given by ^{n+r-1}C_{r-1}

here n=12\ r=5

i.e. ^{12+5-1}C_{5-1}=^{16}C_4

For u=1

1+v+w+x+y=12

v+w+x+y=11

no of solutions for this equation is

^{11+4-1}C_{4-1}=^{14}C_3

if one solution is chosen at random Probability that u=1

=\frac{^{14}C_3}{^{16}C_4}

=\frac{364}{1820}=0.2

4 0
3 years ago
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