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Rama09 [41]
3 years ago
6

Is the function y = 2x? - 5x + 7 linear or nonlinear?

Mathematics
1 answer:
AleksAgata [21]3 years ago
5 0

Answer:

linear

Step-by-step explanation:

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If each data is increased by a constant K then find it's mean ?? answer fast pleaseeeeeeeeeee​
MArishka [77]

Answer:

The mean is also increased by the constant k.

Step-by-step explanation:

Suppose that we have the set of N elements

{x₁, x₂, x₃, ..., xₙ}

The mean of this set is:

M = (x₁ + x₂ + x₃ + ... + xₙ)/N

Now if we increase each element of our set by a constant K, then our new set is:

{ (x₁ + k), (x₂ + k), ..., (xₙ + k)}

The mean of this set is:

M' = ( (x₁ + k) + (x₂ + k) + ... + (xₙ + k))/N

M' = (x₁ + x₂ + ... + xₙ + N*k)/N

We can rewrite this as:

M' = (x₁ + x₂ + ... + xₙ)/N + (k*N)/N

and  (x₁ + x₂ + ... + xₙ)/N was the original mean, then:

M' = M + (k*N)/N

M' = M + k

Then if we increase all the elements by a constant k, the mean is also increased by the same constant k.

6 0
3 years ago
7y+5y-3y= How would I simplify this?
shusha [124]

Answer:

9y

Step-by-step explanation:

Add 7y and 5y which equals 12y. Then subtract 3y from 12y and u get 9y. It might be wrong

8 0
3 years ago
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There are 7 scissors in the drawer. Keith placed 2
stealth61 [152]

Answer:9

Step-by-step explanation:

7+2=9

6 0
3 years ago
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Find the indicated length for the pair of similar figures. X 14 3 21​
IrinaVladis [17]

Answer:

x=2

Step-by-step explanation:

To get from the left figure to the right figure on the bottom we multiply by 7

3*7 =21

To go from the right  figure to the left we divide by 7

14/7 = 2

x would equal 2

4 0
3 years ago
I just need the formula
adell [148]

only the formula? you mean a=bh(a=b*h)

8 0
3 years ago
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