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2 years ago

Is m=0.75d-2 proportional?

2 answers:

4 0

No, a proportion will have a constant for the ratio m/d

If m = 0.75d, then ratio m/d = (0.75d)/d = 0.75

In this example, the ratio is (.75d-2)/d = 0.75 - (2/d).

Therefore, it is not proportional.

m_a_m_a [10]2 years ago

4 0

Answer:

No, the equation m=0.75d-2 does not represent proportional relationship.

Step-by-step explanation:

The given equation is

$m=0.75d-2$

We need to check whether the given equation represents proportional relationship or not.

If variable y is proportional to variable x, then

$y\propto x$

$y=kx$

where, k is the constant of proportionality.

At x=0 the value of y is 0. It means, if a linear equation represents proportional relationship then it must be passes though the origin.

Substitute d=0 in the given equation.

$m=0.75(0)-2$

$m=-2$

The line passes through the point (0,-2).

Since the line does not pass through the origin, therefore it does not represent proportional relationship.

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Identificati,prin verificare,ecuatia pentru care numarul x=3 este solutia

elena-s [515]

Answer:

concluzionăm că nu există o ecuație care să poată justifica valoarea x = 3 din opțiunile de mai sus după rezolvarea lor

Step-by-step explanation:

Urmează să aflăm din cele trei opțiuni date, care este una dintre opțiuni care rezultă în x = 3

Să rezolvăm opțiunea una după cealaltă pentru a deduce și determina care este răspunsul corect și corect.

a) $-2*x + 3 = 9$

$-2x = 9 -3$

$-2x = 6$

Împărțiți ambele părți la -2

x = 6/-2

x = -3

b) $-4*x +5 = 7$

$-4x = 7 -5$

$-4x = 2$

Împărțiți ambele părți la -4

$x = \dfrac{2}{-4} \\ \\ \\ x= \dfrac{1}{-2}$

c) $\dfrac{1}{3}*x -8 =9$

$\dfrac{1}{3}x = 9 +8$

$\dfrac{1}{3}x =17$

Înmulțiți ambele părți cu 3

$x =17*3$

x = 51

Prin urmare; concluzionăm că nu există o ecuație care să justifice valoarea x = 3 din opțiunile de mai sus după rezolvarea lor

5 0

2 years ago

Find the value of w and YZ if Y is between X and Z. <br>XY = 4w YZ = 6W XZ = 12w - 8

yulyashka [42]

Answer:

w = 4

YZ = 24

Step-by-step explanation:

Since, Y is a point lying between the points X and Z.

Therefore, relationship between the lengths of the segments will be,

length of segment XZ = length of XY + length of YZ

It's given in the question,

XZ = 12w - 8

YZ = 6w

XY = 4w

By substituting these values in the relation,

12w - 8 = 4w + 6w

12w - 8 = 10w

12w = 10w + 8

12w - 10w = 8

2w = 8

w = 4

Since, YZ = 6w

Therefore, YZ = 24

8 0

2 years ago

What is the range of the exponential function shown below

Vsevolod [243]

Answer : y>0

f(x) = 9*2^x

f(x) is an exponential function

$f(x) = 9*2^x$

When we plug in positive value for x , the value of y is positive

When we plug in negative value for x , the value y is also positive

So for any value of x, the y value is positive always.

Range is the set of y values for which the function is defined

y values are positive , so range is y >0

3 0

2 years ago

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Keitaro walks at a pace of 3 miles per hour and runs at a pace of 6 miles per hour. Each month, he wants to complete at least 36

Kamila [148]

A. 2x3=6 and 6x12=72 so 78 is greater than 36

6+72=79 which is less than 90

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2 years ago

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Pavel [41]

Ok to find the answer all you have to do is multiply 87.60*10=876
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=620

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2 years ago