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3 years ago

An Electrician charges $30 for a service call plus $75 per hour of service. If he charged 210 how many hours did he work?

Mathematics

1 answer:

andreyandreev [35.5K]3 years ago

3 0

30 + 75x= 210
Subtract 30 from both sides
75x=180
Divide both sides by 75
X =2.4

Worked 2.4 hours

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X^2+y^2+14x+10y=7 <br> center and radius

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3 years ago

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Which of the following represents the quotient of the polynomial 6x^3+3x^2-5/3x^2+1

fenix001 [56]

Answer: The quotient is (2x+1)

Step-by-step explanation:

Here, the dividend = $6x^3+3x^2-5$

Divisor = $(3x^2+1)$

By the long division method for finding the quotient we will follow the following steps,

Steps 1 : Write dividend inside the division sign and divisor outside the division sign,

Step 2: Multiply the divisor by 2x and subtract the result by the dividend,

Step 3: Now, again multiply the divisor by 1,

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3 years ago

Unit 3 homework 6 Gina Wilson

Sonja [21]

Answer:

5) The equation of the straight line is 2 x - y + 1 =0

6) The equation of the straight line is x + y -5 =0

7) The equation of the straight line is 5 x + 6 y - 24 =0

8) The equation of the straight line is x - 4 y -4 =0

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Step-by-step explanation:

The equation of the straight line is

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Slope of the line

$m = \frac{y_{2}-y_{1} }{x_{2}-x_{1} }$

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The equation of the straight line is

$y - y_{1} = m ( x - x_{1} )$

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2 x - y + 1 =0

The equation of the straight line is 2 x - y + 1 =0

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$y - y_{1} = m ( x - x_{1} )$

Slope of the line

$m = \frac{y_{2}-y_{1} }{x_{2}-x_{1} }$

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The equation of the straight line is x + y -5 =0

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$y - y_{1} = m ( x - x_{1} )$

Slope of the line

$m = \frac{y_{2}-y_{1} }{x_{2}-x_{1} }$

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5 x + 6 y -84 + 60 =0

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Slope of the line

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⇒ k = -19

The equation of the parallel line is 3x + y -19 =0

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3 years ago

Can the same radius or diameter have more than one way to be named explain

Dennis_Churaev [7]

Answer:

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Step-by-step explanation:

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3 years ago

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ale4655 [162]

Answer:

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Step-by-step explanation:

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