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
I need help setting up my problem
Genrish500 [490]

The measure of angle A is 144.3 degrees and the angle to cut the molding is 54.3 degrees

<h3>How to solve for angle A?</h3>

Start by solving the acute part of angle A using the following sine function

sin(Ax) = (30 - 4)/32

Evaluate the quotient

sin(Ax) = 0.8125

Take the arc sin of both sides

Ax = 54.3

The measure of angle A is then calculated as:

A = 90 + Ax

This gives

A = 90 + 54.3

Evaluate

A = 144.3

Hence, the measure of angle A is 144.3 degrees

<h3>The angle to cut the molding</h3>

In (a), we have:

Ax = 54.3

This represents the angle where the molding would be cut

Hence, the angle to cut the molding is 54.3 degrees

Read more about angles at:

brainly.com/question/1592456

#SPJ1

4 0
1 year ago
Please help I will mark you as brainliest! Work out the area of shape P!
ozzi
To find the area of a triangle, multiply the height (6) by the base (4) and divide by 2.
- 6 • 4 = 24, 24 / 2 = 12.
The area of this triangle is 12.
7 0
3 years ago
Which equation represents the line whose slope is 1/2 and whose y-intercept is 5
expeople1 [14]

Answer:

y=1/2x+5

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
A family has two cars. The first car has a fuel efficiency of 35 miles per gallon of gas and the second has a fuel efficiency of
cestrela7 [59]

The amount of gas consumed by first and second car were 20 gallons and 15 gallons respectively.

<em><u>Explanation</u></em>

Suppose,  x gallons of gas were consumed by the first car.

As the total gas consumption in one week is 35 gallons, so the amount of gas consumed by second car will be:  (35-x) gallons.

The first car has a fuel efficiency of 35 miles per gallon of gas and the second has a fuel efficiency of 15 miles per gallon of gas.

So, the <u>distance traveled by the first car</u> in x gallons of gas =35x miles and the <u>distance traveled by the second car</u> in (35-x) gallons of gas =15(35-x) miles.

Given that, the two cars went a <u>combined total of 925 miles</u>. So, the equation will be.....

35x+15(35-x)=925\\ \\ 35x+525-15x=925\\ \\ 20x=925-525=400\\ \\ x=\frac{400}{20}=20

So, the amount of gas consumed by the first car is 20 gallons and the amount of gas consumed by the second car is: (35 - 20) = 15 gallons.

3 0
3 years ago
A walkway forms one diagonal of a square playground. the walkway is 16 m long. how long is a side of the​ playground?
prohojiy [21]

Side of the playground would be : a²+a² = 16²

2a² = 256

a² = 128

a = √128

a = 11.31 m

3 0
3 years ago
Read 2 more answers
Other questions:
  • PLEASE HELP ITS DUE TODAY!!! What is the product of 1/2x-1/4 &amp; 5x^2-2x+6? Write your answer in standard form. (A) show your
    11·1 answer
  • Why might the range not be the best estimate of variability?
    5·2 answers
  • Canada has a population. That is about 1/10 as large as the United States. If Canada's population is about 32 million, about how
    11·2 answers
  • Stephan buys a melon and divides it into 6 servings. he eats 1/3 of the melon over the weekend. how many piecesof melon does ste
    7·2 answers
  • If any one can answer this I will give 100 points.( what is 2+2 )
    6·2 answers
  • Which transformations are needed to change the parent sine function to
    11·2 answers
  • A cafeteria measures 40 feet by 60 feet.
    11·2 answers
  • Two brothers, Paul and Julio, left the schoolyard and decided to have a very long footrace. Julio started running at exactly 4:0
    15·1 answer
  • What is greater 27% or 0.48
    8·1 answer
  • Assume that when an adult is randomly​ selected, the probability that they do not require vision correction is ​24%. If 12 adult
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!