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Tema [17]
3 years ago
13

HELP ASAP BRAINLIEST AND THANKS

Mathematics
2 answers:
Gelneren [198K]3 years ago
5 0

Answer:

x values: 2 4 2

y values: 4 6 8

Step-by-step explanation:

For every input (x), there is ONLY one output (y). So if 2 has an input of 4 and 6, it would not be a function.

Sergio [31]3 years ago
3 0

Answer:

x      y

7 4

2 3

7 5

Step-by-step explanation:

it cant be a function if it has two of the same domains.

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What are the roots of 3x2 + 10 = 4x?
sveticcg [70]

Answer:

Option C is correct.

roots of the given equation , x =\frac{2\pm i\sqrt{26}}{3}

Step-by-step explanation:

Given the equation: 3x^2+10 = 4x

We can write this equation as:

3x^2-4x + 10 =0

A quadratic equation is in the form of ax^2+bx+c =0      ......[1] where a,b ,c are the coefficient and x is the variable,

the solution of the equation is given by;

x = \frac{-b\pm\sqrt{b^2-4ac}}{2a}

On comparing given equation with equation [1] we get;

a = 3 , b = -4 and c =10

So, the solution of the given equation is given by;

x = \frac{-(-4)\pm\sqrt{(-4)^2-4(3)(10)}}{2(3)}

or

x =  \frac{4\pm\sqrt{(16-120}}{6} = \frac{4\pm\sqrt{(-104)}}{6} = \frac{4\pm\sqrt{(-4 \times 26)}}{6}

or

x =\frac{4\pm2 \sqrt{(-26)}}{6} = \frac{4\pm2 i\sqrt{26}}{6}    [∴\sqrt{-1} = i

Simplify:

x =\frac{2\pm i\sqrt{26}}{3}

therefore, the roots of the given equation are; x =\frac{2\pm i\sqrt{26}}{3}

5 0
3 years ago
Read 2 more answers
32% of a number is 64 what is the number
Serjik [45]

Answer:

If you take 32 percent of a number and get 64, then what is that number? In other words, you know that 32 percent of a number is 64 and you want to know what that initial number is. Therefore, the answer to "64 is 32 percent of what number?" is 200, and you can also derive that 32 percent of 200 equals 64.

Step-by-step explanation:

7 0
3 years ago
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Jonathan was given one hundred twenty dollars and thirty six cents by his grandma to purchase toys for his three sisters. Write
Molodets [167]
$136.00 should be split into 3 groups, for the 3 sisters. If you divide 136 dollars by 3, you would get 40. Jonathan should spend 40 dollars on each sister.
7 0
4 years ago
Does this graph represent a function? Why or why not?
aksik [14]

Answer:

B

Step-by-step explanation:

It is a function because it passes the vertical line test... (There is no vertical line you can draw that will go through 2 or more than 2 points.)

3 0
3 years ago
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Choose Yes or No to tell if the fraction 3 5 will make each equation true. 7 20 + □ = 19 20 Choose... □ + 3 10 = 3 15 Choose...
OleMash [197]

Answer:

True ; false ; False ; true

Step-by-step explanation:

Equation 1:

7 20 + □ = 19 20

19 / 20 - 7/20

(19 - 7) / 20

12/ 20 = 3/5

Equation 2:

□ + 3 10 = 3 15

3/5 + 3/10

(6 + 3) / 10 = 9/10

Equation 3:

1 2 + 2 3 = □

1/ 2 + 2/3

(3 + 4) / 6

7 / 6

Equation 4:

1 10 + 1 2 = □

1/10 + 1/2

(1 + 5) / 10

6 / 10 = 3/5

4 0
3 years ago
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