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PIT_PIT [208]
2 years ago
11

Which equation has no real solutions?

Mathematics
1 answer:
ASHA 777 [7]2 years ago
3 0

Answer:

Step-by-step explanation:

4x² + 76 = 32

4x² = -44

x² = -11

but x² must be non-negative, so there is no real solution.

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What does the expression 3(20+15) represent?
fgiga [73]

Answer:

It represents 3x20 +3x15

Step-by-step explanation:

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Complete the set of ordered pairs for the relation.
neonofarm [45]

The set of ordered pairs is:

{(-2, 2), (-1, 0), (0, 2), (1, 4), (2, 6)}

<h3>How to complete the set of ordered pairs?</h3>

Here we have the relation:

y = 2*|x + 1|

And the domain is x ∈ { -2, -1, 0, 1, 2}

Evaluating in the values of the domain, we get:

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y = 2*|-2 + 1| = 2

Then we have the ordered pair (-2, 2)

if x = -1

y = 2*|-1 + 1| = 0

Then we have the ordered pair (-1, 0)

if x = 0

y = 2*|0 + 1| = 2

Then we have the ordered pair (0, 2)

if x = 1

y = 2*|1 + 1| = 4

Then we have the ordered pair (1, 4)

if x = 2

y = 2*|2 + 1| = 6

Then we have the ordered pair (2, 6)

The set of ordered pairs is:

{(-2, 2), (-1, 0), (0, 2), (1, 4), (2, 6)}

If you want to learn more about ordered pairs:

brainly.com/question/1528681

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6 0
1 year ago
In order to conduct a certain experiment, four students are randomly selected from a class of 20. how many different groups of f
chubhunter [2.5K]
20x4=80 
i am assuming this is correct this is how i learned just take all numbers in equation and multiply by each other 
8 0
3 years ago
Whats the step by step process to solve 3(×-9)=30
Sergio [31]
<span>step  1  :</span> 3 • (x - 9) - 30 = 0 <span>Step  2  :</span><span>Step  3  :</span>Pulling out like terms :

<span> 3.1 </span>    Pull out like factors :

   3x - 57  =   3 • (x - 19) 

<span>Equation at the end of step  3  :</span> 3 • (x - 19) = 0 <span>Step  4  :</span>Equations which are never true :

<span> 4.1 </span>     Solve :    3   =  0

<span>This equation has no solution.
</span>A a non-zero constant never equals zero.

Solving a Single Variable Equation :

<span> 4.2 </span>     Solve  :    x-19 = 0<span> 

 </span>Add  19  to both sides of the equation :<span> 
 </span>                     x = 19 

One solution was found :                  <span> x = 19</span>
7 0
3 years ago
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