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Stella [2.4K]
3 years ago
7

Use elimination to solve the following system of equations.

Mathematics
2 answers:
Umnica [9.8K]3 years ago
8 0

Answer:

Point form : (2,-11)

Equation form : x=2, y=-11

Step-by-step explanation: Add the equations in order to solve for the first variable. Plug this value into the other equations in order to solve for the remaining variables.

Hope this helps you out!

alexira [117]3 years ago
4 0
2(x+y)

5x-2y=32
2x+2y=-18 +

7x= 14 2 + y= -9
x = 2 y= -7

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Line m and point P are shown below. Part A: Using a compass and straightedge, construct line n parallel to line m and passing th
Arturiano [62]

Answer:

  see the attached

Step-by-step explanation:

In the attachment, we will refer to the circles, bottom-to-top, as circles 1, 2 and 3. The black points of intersection, bottom-to-top, will be referred to by the letters A, B, C, D. The transversal line through the white point (W) and pink point (P) will be line q.

Step 1. Draw line q through point P so it intersects line m at some convenient point. Label that point W.

Step 2. Choose an arbitrary radius for your compass. Here, we have chosen it to be the length WB. It happens to be less than half the length of WP, but that is not a requirement.

Step 3. Draw an arc of the chosen radius centered at W and intersecting line q and line m. Label the intersection points A (on line m) and B (on line q). These intersection points are on circle 1.

Step 4. Draw an arc of the same radius centered at P. It should be a long enough arc that it would intersect the proposed line parallel to m. Label the intersection point on line q with label C. This intersection point is on circle 3.

Step 5. Adjust the compass width (radius) to the distance from A to B. This is the radius of circle 2.

Step 6. Draw an arc centered at C so that it intersects the arc of Step 4. This is circle 2, and you want it to intersect circle 3. Label that point of intersection D.

Step 7. Draw line PD parallel to m.

_____

The point of the construction is to create congruent alternate interior angles AWB and CPD, so that lines AW and PD are parallel.

5 0
3 years ago
Average of 2721 2557 2999 2278 4339
victus00 [196]

Answer:

Step-by-step explanation:

So we know that the average of numbers is all of the numbers added up and divided by the total amount of numbers.

      2721

   + 2557

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

       5278

.... AND SO ON.........

=14,894 is all of the number added together!!!

Then we count up the numbers= 5

       14,894/5

=2978.8

I hope this helps!!!

7 0
4 years ago
Which expressions are equivalent?
vova2212 [387]
A) 3(a - b)  = 3*a +3*-b  = 3a - 3b  EQUAL

b) 2a(2 + b)  = 4a + 2ab     NOT EQUAL
3 0
4 years ago
Read 2 more answers
Here is the image I need help with
Mama L [17]

Answer:

All I know for a fact is that number 10 is C

Step-by-step explanation:

4 0
3 years ago
Find a counterexample to show that the conjecture is false. Any number that is divisible by 2 is also divisible by 6.
Anon25 [30]
The answer is A)22 because 22÷6 is a fraction
6 0
3 years ago
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