1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Artyom0805 [142]
3 years ago
11

PLEASE HELP I WILL BRAINLIST

Mathematics
2 answers:
VladimirAG [237]3 years ago
6 0

Answer:

Well we know that it's a linear because it has a exponent so what we do to answer this question

Step-by-step explanation:

------

- b+ v. b2 -4ac

x= ____________

2a

x2+ 12x +20 =0

a=1

b=12

c=20

_______

X= -12+v 12 2 -4 • 1 • 20

___________________

2•1

AlladinOne [14]3 years ago
3 0

Answer:

2; 10

Step-by-step explanation:

12/2 = 6

(x+6)^{2} = x^{2} +12x + 36

   x^{2} +12x + 20

-   x^{2}<u> +12x + 36</u>

    0 + 0  - 16

(x+6)^{2} - 16 = 0

(x+6)^{2} = 16

x + 6 = \sqrt{16}

x = -4 + 6 = <u>2</u>

x = 4 + 6 = <u>10</u>

You might be interested in
Chad has a rope that is 8 yards long. How many pieces of rope measuring 4/7 of a yard can he divide his rope into?
statuscvo [17]

Answer:

B

Step-by-step explanation:

Your answer is 28 because 4/7 turn it to a decimal and then divide 8 from it and that is how you get your answer 28.

Hope this helps:)

Pls mark brainlist

6 0
3 years ago
Integral of 17/(x^3-125)
daser333 [38]

Answer:

17/75 ln│x − 5│− 17/150 ln(x² + 5x + 25) − 17/(5√75) tan⁻¹((2x + 5) / √75) + C

Step-by-step explanation:

∫ 17 / (x³ − 125) dx

= 17 ∫ 1 / (x³ − 125) dx

= 17 ∫ 1 / ((x − 5) (x² + 5x + 25)) dx

Use partial fraction decomposition:

= 17 ∫ [ A / (x − 5) + (Bx + C) / (x² + 5x + 25) ] dx

Use common denominator to find the missing coefficients.

A (x² + 5x + 25) + (Bx + C) (x − 5) = 1

Ax² + 5Ax + 25A + Bx² − 5Bx + Cx − 5C = 1

(A + B) x² + (5A − 5B + C) x + 25A − 5C = 1

Match the coefficients and solve the system of equations.

A + B = 0

5A − 5B + C = 0

25A − 5C = 1

A = 1/75

B = -1/75

C = -2/15

So the integral is:

= 17 ∫ [ 1/75 / (x − 5) + (-1/75 x − 2/15) / (x² + 5x + 25) ] dx

Simplify:

= 17/75 ∫ [ 1 / (x − 5) − (x + 10) / (x² + 5x + 25) ] dx

Factor ½ from the numerator of the second fraction:

= 17/75 ∫ [ 1 / (x − 5) − ½ (2x + 20) / (x² + 5x + 25) ] dx

Split the fraction:

= 17/75 ∫ [ 1 / (x − 5) − ½ (2x + 5) / (x² + 5x + 25) − ½ (15) / (x² + 5x + 25) ] dx

Multiply the last fraction by 4/4:

= 17/75 ∫ [ 1 / (x − 5) − ½ (2x + 5) / (x² + 5x + 25) − 30 / (4x² + 20x + 100) ] dx

Complete the square:

= 17/75 ∫ [ 1 / (x − 5) − ½ (2x + 5) / (x² + 5x + 25) − 15 / ((2x + 5)² + 75) ] dx

Split the integral:

= 17/75 ∫ 1 / (x − 5) dx − 17/150 ∫ (2x + 5) / (x² + 5x + 25) dx − 17/5 ∫ 1 / ((2x + 5)² + 75) dx

The first integral is:

∫ 1 / (x − 5) dx = ln│x − 5│

The second integral is:

∫ (2x + 5) / (x² + 5x + 25) dx = ln(x² + 5x + 25)

The third integral is:

∫ 1 / ((2x + 5)² + 75) dx = 1/√75 tan⁻¹((2x + 5) / √75)

Plug in:

= 17/75 ln│x − 5│− 17/150 ln(x² + 5x + 25) − 17/(5√75) tan⁻¹((2x + 5) / √75) + C

4 0
3 years ago
A 2-digit number is one more than 6 times the sum of its digits. If the digits are reversed, the new number is 9 less than the o
kramer

Answer:

I think the answer is 43

8 0
2 years ago
We usually get 25 homework problems each night, but the number of problems was decreased by 3. How many homework problems do we
serg [7]

Answer:

you would now have 22 homework problems

6 0
3 years ago
Read 2 more answers
E. Find the slope of the line that passes through the points (1, 3) and (9,7),
Zolol [24]

Answer:

0.5

Step-by-step explanation:

→ Find the difference in y

7 - 3 = 4

→ Find the difference in x

9 - 1 = 8

→ Divide the results

4 ÷ 8 = 0.5

8 0
2 years ago
Read 2 more answers
Other questions:
  • 120% of x is equal to 78.
    9·1 answer
  • One hundred football players were asked how many broken bones they have suffered. The probability distribution shows the probabi
    9·1 answer
  • A brine solution of salt flows at a constant rate of 8L/min into a large tank that initially held 100L of brine solution in whic
    12·1 answer
  • Simply 12(-2x+3)-3x+9(x-9)
    13·2 answers
  • What would happen if osteocytes were damaged
    6·1 answer
  • Elias reads 4 chapters each chapter has 10 pages then he reads 8 more pages how many pages does elias read in all
    12·2 answers
  • I I’m confused.i don’t understand how to solve. Show work please so i can see how you solved it
    9·1 answer
  • First person to answer 10 points
    14·1 answer
  • Anyone know how to do this?
    13·1 answer
  • Uh do yall know the coordinates im supposed to put for the last one
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!