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
Veseljchak [2.6K]
3 years ago
14

Solve the system of equations. -x - 3y = 20 -x + 4y = -36

Mathematics
1 answer:
zhuklara [117]3 years ago
8 0
Multiply the second equation by 1 to make it positive then add them together.
-x-3y=20
+x-4y=36
----------------
-7y=56
y=-8

Plug that into one of the equations above.
-x-3(-8)=20
-x+24=20
-x=20-24
-x=-4
x=4

So x=4 y=-8 or (4,-8)

Hope that helps

You might be interested in
Find the slope of the line that passes through the points (-1,8) and (3, -4). Is this slope greater than, less than, or equal to
Gre4nikov [31]
Slope is -3 and it is less than the slope of y=3x+5
4 0
3 years ago
Read 2 more answers
How do you do this question?
IRINA_888 [86]

Answer:

∑ (-1)ⁿ⁺³ 1 / (n^½)

∑ (-1)³ⁿ 1 / (8 + n)

Step-by-step explanation:

If ∑ an is convergent and ∑│an│is divergent, then the series is conditionally convergent.

Option A: (-1)²ⁿ is always +1.  So an =│an│and both series converge (absolutely convergent).

Option B: bn = 1 / (n^⁹/₈) is a p series with p > 1, so both an and │an│converge (absolutely convergent).

Option C: an = 1 / n³ isn't an alternating series.  So an =│an│and both series converge (p series with p > 1).  This is absolutely convergent.

Option D: bn = 1 / (n^½) is a p series with p = ½, so this is a diverging series.  Since lim(n→∞) bn = 0, and bn is decreasing, then an converges.  So this is conditionally convergent.

Option E: (-1)³ⁿ = (-1)²ⁿ (-1)ⁿ = (-1)ⁿ, so this is an alternating series.  bn = 1 / (8 + n), which diverges.  Since lim(n→∞) bn = 0, and bn is decreasing, then an converges.  So this is conditionally convergent.

5 0
3 years ago
Help I've got 5min to figure it out 20 points for 1st actual answer and brainlyist​
VARVARA [1.3K]
Chronological order
Hoped this help
4 0
2 years ago
Please help if possible due today!❤️❤️ 18 points
rosijanka [135]

Answer:

A

Step-by-step explanation:

All of the values are represented correctly on the histogram. It represents both the points and the frequencies in the correct way.

3 0
2 years ago
Read 2 more answers
What is the value of 11g - 9k + 3 when g = 9 and k = 11?<br> Neatly show your work.
fenix001 [56]

Answer:

3

Step-by-step explanation:

11g - 9k + 3

Let g = 9 and k =11

11 * 9 - 9*11 +3

Multiply

99 - 99 +3

Add

3

4 0
2 years ago
Read 2 more answers
Other questions:
  • The Smiths are sending out a batch of holiday cards. Emily signed of the cards. Then Josh signed of the remaining cards. Tatiana
    12·2 answers
  • Which value of c would make the following expression completely factored?
    8·2 answers
  • Find the length of the missing leg of a right triangle given a leg of length 8 and a hypotenuse of length 10.
    14·2 answers
  • What is 34556 plus 24542​
    10·2 answers
  • PLEASE HELP
    8·1 answer
  • I need the answer please its due in 30 mins
    14·1 answer
  • There are 363 students at Meadowbrook High School. There are 10 more
    15·1 answer
  • A line with a slope of 5 passes through the point (6, 12). Write the equation for this line.
    7·2 answers
  • Find two integers whose sum is -8 and product is -48
    9·1 answer
  • The radius of a circle is 2 inches. What is the circle's arrea?​
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!