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stepan [7]
3 years ago
8

Solve x^2 + 25 = 6x

Mathematics
1 answer:
aivan3 [116]3 years ago
7 0
<h3>I'll teach you how to solve x^2 + 25 = 6x</h3>

----------------------------------------------------------

x^2 + 25 = 6x

Subtract 6x from both sides:

x^2+25-6x=6x-6x

Simplify:

x^2-6x+25=0

Solve with the quadratic formula:

For the quadratic equation of the form ax^2+bx+c=0 the solutions are:

1^x,2 = -b +,- sqrt b^2-4ac/2a

x= -(-6)+ sqrt (-6)^2-4*1*25/2*1 = 3+4i

x= -(-6)+ sqrt (-6)^2-4*1*25/2*1 = 3-4i

Your Answer Is x=3+4i, x= 3-4i

plz mark me as brainliest :)

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Multiply the following 11 x square Y and 2 x square y square
yaroslaw [1]

Answer:

22 x^4y^3

Step-by-step explanation:

11x^2y\times 2x^2y^2\\

by multiplying

=11 \times 2 \times x^2 \timesx^2 \times y \times \times y^2\\=22 \times x^{2+2}y^{1+2}\\=22 x^4y^3

3 0
3 years ago
National Income (NI) is the sum of the incomes that all individuals in an economy earn in the forms of wages,
Dennis_Churaev [7]

Answer:

\simeq 14.94  billion dollars

Step-by-step explanation:

During the period 1994 - 2004, the 'National Income' ,(NI) of Australia grew about 5.2% per year (measured in 2003 U. S, dollars).  In 1994 , the NI of Australia was $ 4 billion.

Now,

(2020 - 1994) = 26

Assuming this rate of growth continues, the NI of Australia in the year 2020 (in billion dollars) will be,

4 \times[\frac{(100 + 5.2)}{100}}]^{26}

=4 \times[\frac{105.2}{100}]^{26}

=\simeq 14.94  billion dollars (answer)

8 0
3 years ago
PLZ HURRY carrie is 3 times as old as Eva. in 15 years Carrie will be twice as old as Eva. how old are they both now
astraxan [27]

Answer:

Age of Eva =  15 Years

Age of Carrie = 45 Years

Step-by-step explanation:

Let the age of Eva be X years

Given that Carrie is 3 times as old as Eva

Therefore age of Carrie = 3X YEARS.

__________________________________________________________

After 15 years

Age of Eva = X + 15

Age of Carrie = 3X +15

Given that Carrie is twice as old as Eva

so according to this condition

age of Carrie = 2*Age of Eva

Substituting the age of Eva and Carrie

3X +15 = 2*(X + 15 )

=> 3X +15 = 2X +30

=> 3X - 2X = 30 - 15

=> X = 15

Since X was assumed age of Eva so age of Eva is 15 years

age of Carrie = 3X years = 3*15 = 45 years.

4 0
3 years ago
-x^(2)-12=-87<br><br> Please explain your answer, and how I make the x positive
spayn [35]
Solve for x over the real numbers:
-x^2 - 12 = -87
Add 12 to both sides:
-x^2 = -75
Multiply both sides by -1:
x^2 = 75
Take the square root of both sides:
Answer:  x = 5 sqrt(3) or x = -5 sqrt(3)  both Answers are correct
7 0
3 years ago
Can someone help 12 points on the line
ANTONII [103]

Answer:

x=6

Step-by-step explanation:

We can write this as a ratio

x        9

---- = --------

10       15

Using cross products

15x = 10*9

15x = 90

Divide by 15

15x/15 = 90/15

x =6

7 0
3 years ago
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