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alekssr [168]
3 years ago
5

1.) Create a single variable linear equation that has no solution. Solve the equation algebraically to prove that it does not ha

ve a solution.
2.) Create a single variable linear equation that has one solution. Solve the equation algebraically to prove that there is one distinct solution for the equation.

3.) Create a single variable linear equation that has infinitely many solutions. Solve the equation algebraically to prove that there is an infinite number of solutions for the equation
Mathematics
1 answer:
Mazyrski [523]3 years ago
3 0

9514 1404 393

Answer:

  1. x = x+1
  2. 0 = x+1
  3. x+1 = x+1

Step-by-step explanation:

1. There will be no solution if the equation is a contradiction. Usually, it is something that can be reduced to 0 = 1.

If we choose to make our equation ...

  x = x +1

Subtracting x from both sides of the equation gives ...

  0 = 1

There is no value of the variable that will make this be true.

__

2. Something that reduces to x = c will have one solution. One such equation is ...

  0 = x+1

  x = -1 . . . . subtract 1 from both sides

__

3. Something that reduces to x = x will have an infinite number of solutions.

One such equation is ...

  x+1 = x+1

Subtracting 1 from both sides gives ...

  x = x . . . . true for all values of x

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Step-by-step explanation:


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Which shaded region is represnted by
dimulka [17.4K]

Answer:

B

Step-by-step explanation:

because it connects into a and b

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3 years ago
Read 2 more answers
X/2 -5=20 please give details
vladimir1956 [14]

Answer: x=50

how?

\frac{x}{2} - 5= 20 (first ADD 5 with 20 whatever you do on one side you have to do it to the other) so that gives us:

\frac{x}{2}=25 (we see that 2 is being divided by x and we want X alone so the inverse of division is MULTIPLICATION)

25 x 2= 50

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6 0
3 years ago
Solve the equation 9x+16=5 for y
dezoksy [38]

Answer:

-11/9 or -1.2222222222

Step-by-step explanation:

9x+16=  5

    -16 -16

  9x= -11

  9x ÷9 and -11÷9

x= -11/9 or -1.2222222222

5 0
3 years ago
Keisha wants to estimate the percentage of managers at her company that hold an MBA. She surveys 320 managers and finds that 70
kondor19780726 [428]

Answer:

The margin of error is of 0.038 = 3.8%.

Step-by-step explanation:

In a sample with a number n of people surveyed with a probability of a success of \pi, and a confidence level of 1-\alpha, we have the following confidence interval of proportions.

\pi \pm z\sqrt{\frac{\pi(1-\pi)}{n}}

In which

z is the zscore that has a pvalue of 1 - \frac{\alpha}{2}.

For this problem, we have that:

n = 320, \pi = \frac{70}{320} = 0.21875

90% confidence level

So \alpha = 0.1, z is the value of Z that has a pvalue of 1 - \frac{0.1}{2} = 0.95, so Z = 1.645.

The margin of error is:

M = z\sqrt{\frac{\pi(1-\pi)}{n}}

M = 1.645\sqrt{\frac{0.21875(1-0.21875)}{320}}

M = 0.038

The margin of error is of 0.038 = 3.8%.

6 0
4 years ago
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