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notsponge [240]
2 years ago
9

Help plz For khan academy

Mathematics
1 answer:
Marta_Voda [28]2 years ago
8 0

Answer:

-18y =1

It is simple addition

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Identify the level of measurement of the​ data, and explain what is wrong with the given calculation. In a​ survey, the favorite
Trava [24]

Answer:

The data are at the   <u>Nominal</u>   level of measurement.

The given calculation is wrong because average (mean) cannot be calculated for nominal level of measurement.

Step-by-step explanation:

The objective here is to Identify the level of measurement of the​ data, and explain what is wrong with the given calculation.

a)

The data are at the <u> Nominal  </u>  level of measurement due to the fact that it portrays the qualitative levels of naming and representing different hierarchies  from 100 basketball, 200 basketball, 300 football, 400 anything else

b) We are being informed that, the average​ (mean) is calculated for 597 respondents and the result is 256.1.

The given calculation is wrong because average (mean) cannot be calculated for nominal level of measurement. At nominal level this type of data set do not measure at all , it is not significant to compute their average​ (mean).

6 0
3 years ago
Write an equation that gives the proportional relationship of the graph.
melomori [17]
<h3>Answer:</h3>

C) y = 6x

<h3>Step-by-step explanation:</h3>

Pick any point. It is often convenient to use x = 1 (no marked point) or x = 10 (where y = 60).

Use these values to see which equation agrees.

A: 60 ≠ (1/6)·10

B: 60 ≠ 2·20

C: 60 = 6·10

D: 60 ≠ 12·10

____

Or, you can solve ...

... y = kx

for k, using the point values you found on the graph.

... 60 = k·10

... 60/10 = k = 6 . . . . . divide by 10

This makes the equation be ...

... y = 6x . . . . . . matches selection C

4 0
3 years ago
What is the equation of the line that passes through the point (-4,-3) and has a slope of 5
lbvjy [14]

Answer:

5x-y=-17

Step-by-step explanation:

that is the answer

7 0
3 years ago
At a school 159 students play at least one sport this is 60% of the students how many students are at the school !I need it fast
MaRussiya [10]

Answer:

Step-by-step explanation:

S(60/100)=159

60S=15900

S=265

So there are 265 total students.

3 0
2 years ago
Which equation could be solved using the graph above?
Oduvanchick [21]

Answer:

Option b is the correct answer

Step-by-step explanation:

The graph in the picture is the graph of a quadratic equation and it takes the shape of a parabola.

The points on the x axis through which the parabola cuts across is used to determine the solution of the quadratic equation.

Looking at the parabola formed from the plotted points, it cuts the x axis at

x = -1 and x= -2

These are the factors of the equation. To get the equation, we multiply the factors.

x= -1, x +1 = 0

x =-2 , x + 2= 0

The equation is (x+1)(x+2)

Expanding the brackets,

x×x + x×2 +1×x + 1×2

= x^2 + 2x + x +2

= x^2 + 3x +2 = 0

Option b is the correct answer

6 0
3 years ago
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