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
mars1129 [50]
3 years ago
5

Help with all of the questions?

Mathematics
1 answer:
jasenka [17]3 years ago
4 0
1. x + 3y = 3 and x - 2y = 0
2. (2,1)
3. solution
4. true
5.  equation 1 :                        equation 2 :
     x + y = 3                                x - 2y = 0
     2 + 1 = 3                                2 - 2(1) = 0
     3 = 3 (correct)                        2 - 2 = 0
                                                   0 = 0 (correct)

both equations are true...so (2,1) is a solution set to this system of equations
      
You might be interested in
PLEASE HELP WILL GIVE 10 POINTS!<br><br> Subtract. −3 2/7−(−5/7)
SashulF [63]

your answer would be -2.57142857143

6 0
3 years ago
Helppp!!! 0_o 70 pnts!!!
kati45 [8]

Answer:

Option A is correct

Step-by-step explanation:

For the box y=mx+c

Hope this helps

8 0
3 years ago
Read 2 more answers
What is the are of this triangle? ( Look at the photo)
Eva8 [605]

Answer:

9 x 4 = 36 divided by 2 = 18

3 0
3 years ago
What are the dimensions of the poster at 1/3 it’s current size?
Nimfa-mama [501]

Answer:

a

Step-by-step explanation:

divide 9 and 6 each by 3 and bam you got a 2x3 poster

7 0
2 years ago
An isosceles trapezoid ABCD with height 2 units has all its vertices on the parabola y=a(x+1)(x−5). What is the value of a, if p
horrorfan [7]

Answer:

a = -0.3575

Step-by-step explanation:

The points A and D lie on the x-axis, this means that they are the x-intercepts of the parabola, and therefore we can find their location.

The points A and B are located where

y=a(x+1)(x-5)=0

This gives

x=-1

y=5

Now given the coordinates of A, we are in position to find the coordinates of the point B. Point B must have y coordinate of y=2 (because the base of the trapezoid is at y=0), and the x coordinate of B, looking at the figure, must be x coordinate of A plus horizontal distance between A and B, i.e

B_x=A_x+\frac{2}{tan(60)} =-1+\frac{2\sqrt{3} }{3}

Thus the coordinates of B are:

B=(-1+\frac{2\sqrt{3} }{3},2)

Now this point B lies on the parabola, and therefore it must satisfy the equation  y=a(x+1)(x-5).

Thus

2=a((-1+\frac{2\sqrt{3} }{3})+1)((-1+\frac{2\sqrt{3} }{3})-5)

Therefore

a=\frac{2}{((-1+\frac{2\sqrt{3} }{3})+1)((-1+\frac{2\sqrt{3} }{3})-5)}

\boxed{a=-0.3575}

8 0
3 years ago
Other questions:
  • 3(x^2+2x-3)-4(4x^2-7x+5) is equivalent to
    6·1 answer
  • Traveling with the current a certain boat went 22 km/h. Against the same current it only went 6 km/h. Find the speed of the boat
    6·1 answer
  • Can someone help i wil mark branliest to anyone who gets this right
    15·1 answer
  • Please I want help I want a correct answer
    7·1 answer
  • Guys help me <br> what is the answer?
    15·1 answer
  • What is 8 percent as a fraction
    11·1 answer
  • 7x <br> 5x+18 <br> Find the size of the smallest angle
    5·1 answer
  • What is the range of this box plot?<br> Select one:<br><br> 9<br><br> 4<br><br> 6<br><br> 7
    15·2 answers
  • Consider the line y=-5x+3. Find the equation of the line that is parallel to this line and passes through the point (3,4). Find
    10·1 answer
  • QUESTION :-
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!