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
.Jim opened an account with $400. The account pays three percent quarterly. How much is in the account at the end of two years?
podryga [215]
We may have this planned like this:
two years is 8 quarters 
<span>Assuming simple interest, </span>
You will use the formula
<span>A = P(1+rt) </span>
<span>= 400(1+8*.03) </span>
<span>= 496
</span>I think this is the answer:) Hope it helps a lot
7 0
3 years ago
Megan took out a loan for $500. The rate is 8%. how much does Megan owe in interest if she pays it back in 4.5 years
Arte-miy333 [17]
56272773829292929383847737373
6 0
3 years ago
Read 2 more answers
Suppose a researcher is testing to see if a basketball player can make free throws at a rate higher than the NBA average of 75%.
stich3 [128]

Answer: A. Repeated results if the player makes 75% of his shots in the long run.

Step-by-step explanation:

The null distribution is always the opposite of the alternative distribution which in most cases represents the claim or hypothesis which is to be tested or performed. In the scenario given, the challenge is to show that a basketball player has an average higher than that of the NBA. NBA average stands at 75%. The alternative hypothesis is the claim, which is ;

H1 : μ > 75%

THE null is thus :

H0 : μ = 75% ; which means that repeated result of the player will yields an average of 75%

3 0
3 years ago
BRAINLIEST + POINTS?!<br><br> Can someone help me please explain!
jarptica [38.1K]

Answer:bhwuwhn enshwh nehe

Step-by-step explanation:

5 0
3 years ago
Agnes has 23 collectible stones, all of
Svetllana [295]

Answer:

The answer is she sold 20 labradorite crytals and 3 galena crystals.

Step-by-step explanation:

First you times 20 x 20 and get 400 and then times 13 x 3 and get 39 and 400 plus 39 equals $439.

7 0
3 years ago
Other questions:
  • -29 = 5w + 6 - 12w. solve for w
    11·2 answers
  • Given △ABC≅△EFG, which congruency statement is true?
    6·2 answers
  • The product of 34 and the number of pounds
    14·2 answers
  • The value of 3 in 43158 is times the value of 3 in 71435
    9·1 answer
  • A factory inspector found flaws in 1 out of 15 wooden boxes. What is the experimental probability that the next wooden box will
    10·1 answer
  • Leroy is a house painter who has just been paid
    7·2 answers
  • 6 builders can build 10 houses. How many number of houses can 18 builders build?
    11·1 answer
  • Brainliest for correct answer, any inapplicable answer or absurd answer will be deleted and reported.
    6·1 answer
  • Write out the first five terms of the sequence.<br><br> an = n - 5
    13·1 answer
  • If Wendell creates a scale drawing using the scale 1 inch to 10 feet, what will the dimensions of the deck in the scale drawing
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!