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
madreJ [45]
3 years ago
11

I need help y’all s.o.s

Mathematics
1 answer:
Firdavs [7]3 years ago
4 0

Please, do not present a long list of questions like this without either explanation of what kind of help you need or what you have already done. One or two problems per post is the informal limit.


I will do just the first problem for you, to get you started, and ask you to share your efforts on the next one.



x-3y≥6

-5x-3y≥-6


We are to find values of both x and y such that points (x,y) satisfy both constraints


x-3y≥6

-5x-3y≥-6.


For simplicity's sake, replace the " ≥ " sign with " = " as follows:


x-3y = 6

-5x-3y= -6


Let's solve this system thru elimination. Mult. the 2nd eqn by -1 to change the sign of all its terms:



5x + 3y = 6


and then add this result to the 1st equation:


5x + 3y = 6

x-3y = 6

-------------------

6x = 12, so x = 6. Now subst. 6 for x in x-3y = 6: 6-3y = 6. Thus, y=0.


The point at which the 2 lines cross is (6,0).


Graph both lines, using solid (not broken) lines, due to the " = " in " ≥ .


Because of the " ≥ " signs in each of the original inequalities, shade the graph ABOVE each of these solid lines. Note that you will have TWO shaded areas, which partially overlap. The solution set here is represented by the area that has been shaded twice.


To help you with the graphing:


x-3y = 6 can be rewritten as 3y = -x + 6, or y = (-1/3)x + 2. This line has a y-intercept of 2 and a slope of -1/3.


-5x-3y≥-6 can be rewritten as - 3y = 5x - 6, or y = (-5/3)x + 2. This line has a y-intercept of 2 (same as the other line) and a slope of -1/3 (different from the other one).


If you do this graphing correctly, you will find that the 2 lines intersect at (6,0).


The most efficient way to show the "solution" of this system of inequalities is to graph the two lines and shade the areas above them. Draw lines around the area that has been shaded twice.


You might be interested in
Timothy uses 20 inches of yarn for knitting yarn every 5 minutes. How will he use in one hour?
Harman [31]

if Timothy uses 20 inches of yarn for knitting yard every 5 minutes, then we can divide the total time in this time so in 1 hour are 60 minutues so:

\frac{60}{5}=12

Then he has to use:

20\cdot12=240

4 0
11 months ago
What is the perimeter of the shaded triangle?
trapecia [35]
36 
is the answer, i hope im right 
4 0
3 years ago
A trapezoid has an area of 24 square meters. The lengths of the bases of the trapezoid are 5 meters and 7 meters. What is the he
Maurinko [17]

The area of any trapezoid is

                      Area = (1/2) x (height) x (one base + the other base) .

Take that formula and write in the numbers you know:

                 (24 m²) = (1/2) x (height) x (5m + 7m)

                 (24 m²) =  (6m) x (height)

Divide each side by  6m :

                 Height = (24 m² / 6m) 

                            =     4 m .

3 0
3 years ago
Read 2 more answers
Can someone plz help me with this
bearhunter [10]
Hello!

The equation 5*18 equals 90.  So, there are nine tens in this equation's answer.

Have a wonderful day!  :)

-L

6 0
3 years ago
Read 2 more answers
Draw 4 non collinear points
harina [27]
I don't know if you have to do this on a graph, or just on a blank space. But, noncollinear means, "not on the same line". So, if you were to draw four points in a blank spot on a piece of paper, just draw four points in random places, making sure they aren't all directly in line with eachother. For a graph, use points like: (-6,2), (5,7), (8,3), and (1,-3). Notice that none of them have the same x or y coordinates, so they can't possibly be collinear.
4 0
3 years ago
Other questions:
  • The sum of two numbers is 30.the first number is 1/5 of the second number. what are the numbers?
    15·1 answer
  • Math diagonal polygon 50 points
    11·2 answers
  • The temperature of a chemical compound, in degrees Celsius, changes when the compound is exposed to UV light. The table below sh
    10·2 answers
  • Factor completely 3y^2+7y+4
    13·2 answers
  • We have 4 3/4 pounds of apple in each bag. If there are four bags, how many pounds of apples are there in all
    11·1 answer
  • Samantha created part of a table to show her savings. She saved at the same rate each week. Which graph shows this relationship?
    8·2 answers
  • Help me please<br>im not good at me smol bean needs help i got like a 65 help smol beannnn
    14·1 answer
  • 1. Write out the following expressions:
    10·1 answer
  • 11. Write the equation of a line passing through the two points. First find the slope and the y-
    11·1 answer
  • The graph of y = f(x) is the solid black graph below. Which function represents the dotted graph? ​
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!