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
laiz [17]
3 years ago
5

How many solutions does the system formed by x-y=3 and ay-ax+3a=0 have for a nonzero number a? Explain.

Mathematics
1 answer:
RoseWind [281]3 years ago
4 0
There's no solution that is nonzero.
x-y=3
x = 3+y

Substitute that to the second equation.
ay-a(3+y)+3a=0
6a=0
a=0

y = x-3

Substitute that to the second equation
a(x-3)-ax+3a=0
0 = 0
You might be interested in
Which points are on the graph of the function rule f(x) = 10 – 4x?
kondor19780726 [428]
(–2, 18), (0, 10), (2, 2)
8 0
3 years ago
Read 2 more answers
Which transformation on the coordinate plane is a dilation?
Kaylis [27]

Answer:

It is the third one

Step-by-step explanation:

if that was the question even, I chose this as dilation is basically just getting bigger or smaller but without rotation,sliding, and none of the sides should be changing

6 0
2 years ago
Need answers for 13, 12, and 13
Marysya12 [62]

Step-by-step explanation:

-0.45 = 9/20

2.77= 2 7/9

5.55  = 5 5/9

5 0
3 years ago
What is the domain and range of the relation shown in the table?
Leokris [45]

Answer:

domain: {-12, -8, 0, 1}   range: {0, 8, 12}

Step-by-step explanation:

domain are of all the input values shown on the x-axis. The range is the set of possible output  shown on the y-axis.

5 0
3 years ago
An electronic devise beeps every 4 seconds. Another devise beeps every 6 seconds if they both start beeping at the same time how
Nat2105 [25]
Answer:

3

Explanation:

The smallest whole number that 4 and 6 share when multiplied is 12
4 0
3 years ago
Other questions:
  • Red and grey bricks were used to build a decorative wall. The number of red bricks/number of grey bricks was 5/2 There were 140
    12·1 answer
  • If you formed an algebraic equation to model the sentence, "three times a number is equal to nine," how many variables would be
    8·1 answer
  • Justine answered 68 questions correctly on a 80-question test.
    9·1 answer
  • Noah spent $5 to get into the fair, and $2 for every ride. Write an equation to model this situation.
    12·2 answers
  • -4(-11+4n)-3(-2n+9) simplify to create an equivalent expression
    15·1 answer
  • Three numbers are in the ratio 5 :3 : 2. If the sum of their squares is 5472, find the three numbers
    12·1 answer
  • What’s the anwser for this. I’m so confused
    15·1 answer
  • Alexandra wants to invest in an option that would help to increase her investment value by the greatest amount in 20 years. How
    5·1 answer
  • 7.) The online book is $29.00 but the tax and shipping is another 25%. What will it cost me with the tax and shipping?
    5·1 answer
  • Solve the system of equations:x + 3y - z = -4 2x - y + 2z = 13 3x - 2y - z = -9
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!