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
Shtirlitz [24]
2 years ago
6

LORD PLEASE HELP MEEEEEEEEEEEEEEEEEEEEEE!

Mathematics
2 answers:
mars1129 [50]2 years ago
6 0

Answer:

( -1,7)

Step-by-step explanation:

{ refer attachment }

nekit [7.7K]2 years ago
5 0

Answer:

The answer would be (-1,7)

Step-by-step explanation:

Using the process of elimination we can subtract the two equations to cancel out the y variable. That is subtract the second equation from the first.

 3x + y = 4

<u>- 2x + y = 5</u>

<u>   x        = -1</u>

Now that we have found x we can substitute -1 for x into any equation for y. So, in substituting -1 for x in the  second equation we get:

2(-1) + y = 5

-2 + y = 5

y = 5 + 2

y = 7

ANSWER: (-1, 7)

You might be interested in
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
Idek the answer please help
VashaNatasha [74]

Answer:

A.

Step-by-step explanation:

4 0
2 years ago
Read 2 more answers
Of the 9 people attending a lecture, 3 have green eyes.
nadya68 [22]
The probability is 1/3
4 0
2 years ago
If a graph of a system of two equations shows two lines that coincide on a coordinate plane, how many solutions does the system
olga55 [171]

If a graph of a system of two equations shows two lines that coincide on a coordinate plan there would be C.)Infinitely many solutions

I hope this helps, have a great day.

3 0
3 years ago
Read 2 more answers
Find the x-coordinate of Q' after Q(-2. 5) was reflected over the line y = -x + 4.
Alina [70]
Oh hello thereeeeeeee
3 0
3 years ago
Other questions:
  • 2 kg of coconut juice which costs $5/kg were combined with 8 kg of coconut milk which costs $3/kg. Find the cost per kg of the m
    14·1 answer
  • Please now is urgent​
    11·1 answer
  • How do you do equations involving factored expressions
    8·1 answer
  • What are the endpoint coordinates for the midsegment of △BCD that is parallel to BC¯¯¯¯¯?
    6·2 answers
  • Help me out this question i dont understand it
    9·2 answers
  • Part B Write an expression based on Hayley’s method to find the total number of pieces of fruit.
    7·2 answers
  • Common denominators for 14 and 710
    13·1 answer
  • WHAT IS 807,603 ROUNDED TO THE NEAREST THOUSAND
    15·2 answers
  • When Derek planted a tomato plant, he expected to be picking his first ripe tomato in 45 days. His estimate was 25% less than th
    13·1 answer
  • What is the slope of a line that passes through the point (-3,0) and has a y-intercept of 12
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!