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
UNO [17]
2 years ago
6

4x - 2y = -14 3х - у = -8

Mathematics
1 answer:
oksian1 [2.3K]2 years ago
6 0

are you trying to add them all together if so here how that would work

4x-3x=1x

2y-(1)y =1y(if the y is alone theirs a 1 always infront of it)

-14-8=-22

You might be interested in
PLEASE HELP!Choose the slope and y-intercept that
meriva
The slope is -3/2 and the y-intercept is -3. If you need me to explain I can do that :) hope this helps
3 0
3 years ago
Solve the following recurrence relation: <br> <img src="https://tex.z-dn.net/?f=A_%7Bn%7D%3Da_%7Bn-1%7D%2Bn%3B%20a_%7B1%7D%20%3D
-Dominant- [34]

By iteratively substituting, we have

a_n = a_{n-1} + n

a_{n-1} = a_{n-2} + (n - 1) \implies a_n = a_{n-2} + n + (n - 1)

a_{n-2} = a_{n-3} + (n - 2) \implies a_n = a_{n-3} + n + (n - 1) + (n - 2)

and the pattern continues down to the first term a_1=0,

a_n = a_{n - (n - 1)} + n + (n - 1) + (n - 2) + \cdots + (n - (n - 2))

\implies a_n = a_1 + \displaystyle \sum_{k=0}^{n-2} (n - k)

\implies a_n = \displaystyle n \sum_{k=0}^{n-2} 1 - \sum_{k=0}^{n-2} k

Recall the formulas

\displaystyle \sum_{n=1}^N 1 = N

\displaystyle \sum_{n=1}^N n = \frac{N(N+1)}2

It follows that

a_n = n (n - 2) - \dfrac{(n-2)(n-1)}2

\implies a_n = \dfrac12 n^2 + \dfrac12 n - 1

\implies \boxed{a_n = \dfrac{(n+2)(n-1)}2}

4 0
2 years ago
CD is a perpendicular bisector of chord AB and a chord through CD passes through the center of a circle. Find the diameter of th
Keith_Richards [23]

Answer:

12\frac{1}{5} in

Step-by-step explanation:

I don't know if you got this pic but this is the answer for this pic

5 0
2 years ago
Which of the following is an example of exponential growth or decay?
Effectus [21]

Answer:

Since in option B, the bacteria are growing exponentially, B would be the correct answer to this question.

Step-by-step explanation:

7 0
3 years ago
A manufacturer tests a certain number of the headsets that are produced each day. If 280 units of that model are tested, and the
Natali5045456 [20]

Answer: 1%

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
Other questions:
  • *Please Help!* (Easy question) 20 POINTS
    7·2 answers
  • One solution of x^2-64=0 is 8. What is the other solution?
    11·1 answer
  • Between which two consecutive who numbers does 22 lie
    6·1 answer
  • A right triangle has a hypotenuse of 32 cm and a base measurement of 8 cm. What is the length of its altitude leg to the nearest
    5·1 answer
  • What is the square root of 81
    12·2 answers
  • Which equation can be used to solve for x in the triangle below?
    10·1 answer
  • PLEASE HELP!!!<br> select the equivalent expression
    5·1 answer
  • The first eight quizzes in this class had average scores of 8,9,9,8,8,9,8,7. This gives a sample mean of 8.25 and a sample stand
    12·1 answer
  • A box contains four equal-sized cards labeled 1 , 3, 5, and 7. Tim will select one card from the box. What is the probability th
    10·1 answer
  • The amount of liquid a bottle cap can hold would most likely be measured in
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!