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
viva [34]
3 years ago
10

How many solutions does the system formed by x - y = 3 and ay + 3a = 0 have for a non zero number a? Explain and show how you ge

t the answer please
Mathematics
1 answer:
dlinn [17]3 years ago
4 0
Solve both equations for y:
x-y=3 \ \ \ |-x \\
-y=-x+3 \ \ \ |\times (-1) \\
y=x-3 \\ \\
ay+3a=0 \ \ \ |-3a \\
ay=-3a \ \ \ |\div a, a \not= 0 \\
y=-3

Set the expressions equal to each other:
y=y \\ x-3=-3 \ \ \ |+3 \\
x=0 \\ \\
(x,y)=(0,-3)

So, for every nonzero number a the system of equations has one solution.
You might be interested in
Score: 0 of 1 pt
nydimaria [60]

Answer:

so halve the deck is black and halve the deck is red so you have 26 black cards then divide by 5 and you get 5 with 1 card leftover

3 0
2 years ago
Please help! 50 points
LiRa [457]
Find the oz 
divide 243 by 15 

5 0
3 years ago
Read 2 more answers
7 less or greater than 5x -16 does it equal 4?
Marysya12 [62]
Can you re-phrase the question


4 0
3 years ago
Ryan, a baker, measured the weights of cakes baked in each batch at his bakery and found that the mean weight of each cake is 50
denpristay [2]

Answer: Rejecting the mean weight of each cake as 500 gram when H subscript 0 equals 500

Step-by-step explanation:

Given that :

Null hypothesis : H0 =500

Alternative hypothesis : Ha < 500

Type 1 Error: Type 1 error simply occurs when we reject the Null hypothesis when the Null is true. Alternatively, type 11 error occurs when we fail to reject a false null hypothesis.

Hence, in the scenario above, a type 1 error will occur when we reject the mean weight as 500 even though the Null hypothesis is True.

6 0
3 years ago
Is the length of the hypotenuse of a right triangle with legs that mea-
icang [17]
Answer:
Irrational Number

Step-by-step explanation:
So, since it's a right triangle, you can use Pythagorean Theorem to calculate the measure of the hypotenuse.

Pythagorean Theorem says the hypotenuse squared = the sum of the sides squared.

5² + 6² = 25 + 36 = 61

And the square root of 61 is 7.8102496.... and the decimal continues in no distinguishable pattern. Therefore, the length of the hypotenuse is an irrational number.
4 0
2 years ago
Other questions:
  • Pls help yall...im stuck on it
    9·2 answers
  • taylot is making a cookie cake that has a diameter of 15 in what is the area of a fourth of the cake?
    14·1 answer
  • Identify the domain of the exponential function shown in the following graph:
    10·2 answers
  • Miss Guydan and her friend Alyssa are collecting food for the local food bank. Their goal is to collect 2100 pounds of food. The
    13·1 answer
  • Plz help as soon as possible!
    14·1 answer
  • F
    13·1 answer
  • Jayden goes to the batting cage. He purchases three tokens and rents a helmet. If he spends a total of $6.50, how much is each t
    10·1 answer
  • PLS HELP<br> Q1: Describe the pattern in the table:
    8·1 answer
  • HELP!!!! I can’t figure this out
    5·1 answer
  • Refer to the image i couldnt copy it so the image is the quesstion<br><br> answer in true or false
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!