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CaHeK987 [17]
3 years ago
10

The total cost of hiring paul the plumber is a function of the required number of hours needed to complete the repair. Paul char

ges $40 per hour up to maximum of 8 hours, plus a $75 service charge what is the greatest value in the range for this situation
Mathematics
1 answer:
DiKsa [7]3 years ago
4 0

Paul surely charges 75 dollars, and then he adds 40 dollars per hours. This means that the expression for the money he asks is

m = 75+40h

where m is the amount of money and h is the number of hours.

Since h can be at most 8, this is the case that generates the highest money, so if we plug h=8 we have

m = 75+40\cdot 8 = 75 + 320 = 395

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The term coefficient refers to
Dmitry_Shevchenko [17]

Answer:

It refers to a numerical or constant quantity placed before and multiplying the variable in an algebraic expression.

5 0
2 years ago
What is (2+y)³ written out? 8 + 12y + 6y² + y³ 6 + 8y + 4y² + y³
AveGali [126]
\boxed{(2+y)^3-cube\ the\ sum\ of\ the\ numbers\ 2\ and\ y}

Use:\ (a+b)^3=(a+b)(a+b)(a+b)=a^3+3a^2b+3ab^2+b^3\\----------------------------\\(2+y)^3=2^3+3\cdot2^2\cdot y+3\cdot2\cdot y^2+y^3=8+3\cdot4y+6y^2+y^3\\\\=8+12y+6y^2+y^3\\========================================

8+12y+6y^2+6y^3+8y+4y^2+y^3\\=8+(12y+8y)+(6y^2+4y^2)+(6y^3+y^3)\\=8+20y+10y^2+7y^3



7 0
3 years ago
Read 2 more answers
Simplify.<br> 3/4 squareroot -48
zepelin [54]

Answer:

3i √3

Step-by-step explanation:

you can't have the square root of a negative number

so we use "i"

6 0
3 years ago
What is the answer plz I really need help
Liono4ka [1.6K]

6) slope is 1, y-intercept is 3, equation in slope-intercept form:

y=x+3

7) Slope of the line that goes through the points (3,9) and (-5,3) is Slope=\frac{3}{4}

8) Slope = m= \frac{2}{3}

y-intercept = b= -4

Step-by-step explanation:

6) Create table of coordinate points:

x     y

-2    1

-1     2

0     3

1      4

2     5

Identify the slope:

Using formula:

Slope=\frac{y_2-y_1}{x_2-x_1}

Putting values:

Slope=\frac{2-1}{-1-(-2)}

Slope=\frac{1}{-1+2}

Slope=\frac{1}{1}

Slope=1

So, slope is 1

Identify y-intercept.

y-intercept is found when x=0, so, looking at the table when x = 0, y= 3 so, y-intercept is 3

Equation in the form: y=mx+b

here m is slope and b is y-intercept

Putting values:

y=mx+b\\y=1x+3\\or\,\,y=x+3

So, equation in slope-intercept form:

y=x+3

7) Find the slope of the line that goes through the points (3,9) and (-5,3)

Using formula:

Slope=\frac{y_2-y_1}{x_2-x_1}

Putting values:

Slope=\frac{3-9}{-5-(3)}

Slope=\frac{-6}{-5-3}

Slope=\frac{-6}{-8}

Slope=\frac{3}{4}

So, slope of the line that goes through the points (3,9) and (-5,3) is Slope=\frac{3}{4}

8) What is the slope and y-intercept of the following equation:

y=\frac{2}{3}x-4

The equation is in slope-intercept form

The general equation of slope-intercept form is:

y=mx+b

where m is slope and b is y-intercept

Comparing both equations we get:

Slope = m= \frac{2}{3}

y-intercept = b= -4

Keywords: Equation of line using Slope  

Learn more about Equation of line using Slope at:

  • brainly.com/question/9369548
  • brainly.com/question/4932386
  • brainly.com/question/4819659

#learnwithBrainly

5 0
3 years ago
Whats the value of x<br> 120°<br> (2x – 10)°
Bess [88]
The answer is 2x-1
Step-by-step explanation:
2x-10^0
Any non zero expression raised to the power of 0 equals 1.
2x-1
So that would be your answer.
Hope that helped.
3 0
2 years ago
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