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Serga [27]
3 years ago
7

Which of the following equations has one real solution?

Mathematics
1 answer:
erastovalidia [21]3 years ago
4 0

Answer:

4x2−12x+9=0

Step-by-step explanation:

The equation, 2x2+x+3=0, does not have a solution

The equation, x2+5x−3=0, equals -5/2+1/2√37 and -5/2+-1/2√37

The equation, x2−5x+4=0, equal 1 and 4

The equation, 4x2−12x+9=0, equals only 3/2

Hope this Helps

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Solve for the indicated variable.<br><br> 2a + 2b = c for b<br><br> B = ?/?
kodGreya [7K]

Answer:

b =  c − 2a

     ------------

          2

Step-by-step explanation:

2a + 2b = c

2b = c − 2a

b =  c − 2a

     ------------

          2

7 0
3 years ago
Lance and Alex have 70 pencils. Lance has 4 times as many pencils as Alex. Alex's pencils are shared equally among 2 children. H
gogolik [260]


let l = lance, and a = alex.

so: l + a = 70

and l = 4a

Putting the value for l in the first equation:

4a +a = 70

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So Alex has 14 pencils. And Lance has (70-14) 56 pencils.

And if each child gets half of Alex' pencils, then each child will have 7 pencils.

6 0
3 years ago
Luigi is the first person to finish a 5K race and is standing 13 feet beyond the finish line. Another runner, Mario, is still ru
11Alexandr11 [23.1K]

37 Feet


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3 0
3 years ago
Help w this also! please&lt;3
jolli1 [7]

Answer:

equation for line:  y = 5/3x -7/3

Step-by-step explanation:

The equation for a linear line is y = mx + c. m is the gradient of the line, also known as slope. So, m = 5/3.

Next we need to find c. Since we know a point the line must intersect, we can sub this into our line equation to get an answer:

(2,1) x=2,y=1

1 = 5/3*2 + c

1 = 10/3 + c

1 - 10/3 = c

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3 years ago
Arun spends some of the money from his monthly salary on food, travelling
Katarina [22]

Answer:

ummm where is the question anyway?

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