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kari74 [83]
4 years ago
13

For what values (cases) of the variables the expression does not exist: a/2x−4 (That equation is a fraction)

Mathematics
1 answer:
Dmitry_Shevchenko [17]4 years ago
3 0

Answer:

When x=2 the expression is undefined

Step-by-step explanation:

When the denominator is zero, the expression is undefined

2x-4 =0

2x=4

x=4/2

x=2

When x=2 the expression is undefined

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Jose is working two summer jobs, making $10 per hour washing cars and $9 per hour walking dogs. Last week Jose worked a total of
Setler [38]

Answer:

x+y =13

10x + 9y =122

Step-by-step explanation:

Hi, to answer this question we have to write a system of equations:

The sum of the hours he worked washing cars (x) and the hours he worked walking dogs(y) will be equal to the total hours worked (13)

  • x+y =13

For the second equation the product of the number of hours he worked washing cars(x) and the price per hour ($10) plus the product of the number of hours he worked walking dogs (y) and the price per hour ($9) will be equal to the total amount earned (122)-

  • 10x + 9y =122

So, the system of equations is:

  • x+y =13
  • 10x + 9y =122

Where:

x: number of hours Jose worked washing cars

y: number of hours Jose worked walking dogs  

7 0
4 years ago
Read 2 more answers
Can you please help me?
ASHA 777 [7]

Answer:

  • f(2) = 0.5(2) +3.4
  • f(3.5) = 0.5(3.5) +3.4
  • f(15) = 0.5(15) +3.4
  • f(21.3) = 0.5(21.3) +3.4

Step-by-step explanation:

Put the given weight where x is in the function definition. You're only asked for the expression, not its value.

  • f(2) = 0.5(2) +3.4
  • f(3.5) = 0.5(3.5) +3.4
  • f(15) = 0.5(15) +3.4
  • f(21.3) = 0.5(21.3) +3.4
3 0
3 years ago
What are the attributes of a parallelogram
aleksley [76]

Answer:

simple quadrilateral with two pairs of parallel sides. The opposite or facing sides of a parallelogram are of equal length and the opposite angles of a parallelogram are of equal measure

Step-by-step explanation:

7 0
4 years ago
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The formula for the circumference of a circle is c=2 pie r. Use this formula to write a formula for the radius of a circle
Aleks04 [339]

Answer:

radius = C / 2π :)

Step-by-step explanation:

The circumference is 2πr, right?

Let's put this information into an equation :)

C = 2πr

Now, we can simply divide both sides by 2π here to isolate r (the radius) by itself, because that's what we want! (Something equal to the radius)

C / 2π = r

There's your answer! :)

8 0
3 years ago
If a population is ______ , a sample of the population could be _____.
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