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2 years ago

Find the mean 3,4,4,2,5,7,2

Mathematics

1 answer:

stich3 [128]2 years ago

7 0

Thats 3.85714285714 because if you add the numbers and divide by the numbers they are it’ll be 3.85714285714

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Write the equation of the line with a<br> slope of -2 and passes through (4, -1).

MArishka [77]

Answer:

Step-by-step explanation:

y=mx+b

y= -2x + 3 $\frac{1}{2}$

hope this helped :)

7 0

2 years ago

Does the table show a direct proportional relationship? If so, what is the constant of proportionality?

lesantik [10]

Answer:

C. Yes, 3.5.

Step-by-step explanation:

If there is a relationship of direct proportionality for every ordered pair of the table, then the constant of proportionality must the same for every ordered pair. The constant of proportionality ( $k$ ) is described by the following expression:

$k = \frac{y}{x}$ (1)

Where:

$x$ - Input.

$y$ - Output.

If we know that $(x_{1}, y_{1}) = (13, 45.5)$ , $(x_{2}, y_{2}) = (14, 49)$ and $(x_{3}, y_{3}) = (15, 52.5)$ , then the constants of proportionalities of each ordered pair are, respectively:

$k_{1} = \frac{y_{1}}{x_{1}}$

$k_{1} = \frac{45.5}{13}$

$k_{1} = \frac{7}{2}$

$k_{2} = \frac{y_2}{x_2}$

$k_{2} = \frac{49}{14}$

$k_{2} = \frac{7}{2}$

$k_{3} = \frac{y_{3}}{x_{3}}$

$k_{3} = \frac{52.5}{15}$

$k_{3} = \frac{7}{2}$

Since $k_{1} = k_{2} = k_{3}$ , the constant of proportionality is 3.5.

8 0

2 years ago

Please help!! | show work and do not guess. :)

Olegator [25]

The answer would be b A≈1636.8

8 0

3 years ago

What is the constant term of -3x^4-7x+2

san4es73 [151]

Answer:

The answer is 2. 2 is the only number that can't change. There is no x or ^.

4 0

3 years ago

How can I write the mapping rule of

kvasek [131]

Answer:Mapping Rule A mapping rule has the following form (x,y) → (x−7,y+5) and tells you that the x and y coordinates are translated to x−7 and y+5. Translation A translation is an example of a transformation that moves each point of a shape the same distance and in the same direction.

Step-by-step explanation:

3 0

2 years ago