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Degger [83]
3 years ago
6

#1: Write the equation of the graphed line. NO SPACES, ALL LOWERCASE. Please help

Mathematics
1 answer:
ivanzaharov [21]3 years ago
8 0

Answer:

Equation of graphed line is \mathbf{y=\frac{2}{3}x-3}

Step-by-step explanation:

We need to write the equation of the graphed line.

The equation will be in slope intercept form y=mx+b where m is slope and b is y-intercept

We need to find slope and y-intercept.

Finding slope

Slope can be found using formula: Slope=\frac{y_2-y_1}{x_2-x_1}

We will use points (0,-3) and (3,2)

Looking at the graph, we get x_1=0, y_1=-3, x_2=3, y_2=-1

Putting values in graph and finding slope

Slope=\frac{y_2-y_1}{x_2-x_1}\\Slope=\frac{-1-(-3)}{3-0}  \\Slope=\frac{-1+3}{3}  \\Slope=\frac{2}{3}

So, we get slope \mathbf{\frac{2}{3}  }

Finding y-intercept

y-intercept can be found when x is zero.

So, looking at graph, when x =0, y=-3

So, y-intercept is -3

Equation of Line

So, equation of line having slope \mathbf{\frac{2}{3}  } and y-intercept b = -3

y=mx+b\\y=\frac{2}{3}x-3

So, Equation of graphed line is \mathbf{y=\frac{2}{3}x-3}

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Step-by-step explanation:

You would multiply 1/4 times 4 to get 1 hour

then you would multiply 2/3 times 4 which is 2 2/3

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A measurement template with a historcal value of 25.500 is measured 27 times and a mean value of 25.301 is recorded. What is the
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Complete Question

A measurement template with a historical value of 25.500 mm is measured 27 times and a mean value of 25.301 mm is recorded. What is the percent bias when the tolerance is +/- 0.3?

Answer:

The percent bias is  B = 33.167 \%  

Step-by-step explanation:

From the question we are told that

   The historical value  is  S = 25.00 \ mm

   The number of times it is measured is  n  =  7  

    The mean value is  \= x = \frac{\sum x_i }{n} = 25.301 \ mm

    The tolerance is  t =\pm 0.3 = 0.3 - (-0.3) = 0.6

Generally the percent bias is mathematically represented as

      B = 100 * \frac{\= x - \tau }{ t}

=>  B = 100 * \frac{25.301 - 25.5000 }{0.6}

=>  B = 33.167 \%  

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Let f and g be the functions defined by f(x) = 10^ (x+2 / 3) and g(x) = log (x3 / 100) for all positive real numbers,
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Answer:

F(x) and g(x) are not inverse functions.

Step-by-step explanation:

In order to calculate the inverse function of a function, we have to isolate X and after that, we change the variables.

As our function f(x) is a exponentian function, we can apply logarithm with base 10 (log) in both sides in order to isolate X. Remember that log10=1.

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Now we change the variables.

F(x)=log x-\frac{2}{3}

F(x) and g(x) are not inverse functions.

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Step-by-step explanation:

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