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
V125BC [204]
4 years ago
13

Branilest and 30 point please answer

Mathematics
1 answer:
Lynna [10]4 years ago
7 0

Answer:

<em>Addition Property of Equality</em>

Step-by-step explanation:

<u>System of Equations</u>

When two equations are given and two variables are unknown in both equations, then we can solve the system in several ways.

One method consists in adding both equations term by term and eliminate one of the variables. That property is called the addition of equalities. Let's consider the equations given in the problem:

5x+4y=-2\\2x-4y=6

If we add both equations, we have

5x+4y+2x-4y=-2+6

Simplifying

7x=4

By adding both equations we managed to eliminate the variable y and could easily find the value of x

x=4/7

Answer: Addition Property of Equality

You might be interested in
Consider the given function and the given interval. f\(x\) = 2 sin\(x\) - sin\(2 x\) text(, ) [0 text(, ) pi] (a) Find the avera
Finger [1]

a. The average value of f on the given interval is

\displaystyle f_{\rm ave}=\frac1{\pi-0}\int_0^\pi(2\sin x-\sin2x)\,\mathrm dx=\boxed{\frac4\pi}

b. Solve for c:

\dfrac4\pi=2\sin c-\sin2c\implies\boxed{c\approx1.238\text{ or }c\approx2.808}

4 0
3 years ago
Find x. A. 11√6/2 B. 22 C. 33 D. 11√3/2
Phoenix [80]

Answer:

B

Step-by-step explanation:

using the tangent ratio on the triangle on the right and the exact value

tan60° = \sqrt{3} , then letting the altitude be h

tan60° = \frac{opposite}{adjacent} = \frac{11\sqrt{6} }{h}  = \sqrt{3} ( multiply both sides by h )

11\sqrt{6} = h × \sqrt{3} ( divide both sides by \sqrt{3} )

11\sqrt{2} = h

using the sine ratio in the triangle on the left and the exact value

sin45° = \frac{\sqrt{2} }{2} , then

sin45° = \frac{opposite}{hypotenuse} = \frac{h}{x} = \frac{11\sqrt{2} }{x} = \frac{\sqrt{2} }{2} ( cross- multiply )

\sqrt{2} × x = 22\sqrt{2} ( divide both sides by \sqrt{2} )

x = 22

6 0
1 year ago
(picture)<br>circle the numbers that are divisble by the number given ​
Dmitry [639]

Answer:

Hope that this helps!!!

3 0
3 years ago
Explain why the graphing calculator cannot be used to solve or approximate solutions to all polynomial equations.
Lelu [443]
Let's put it this way:  If you plot a few non-x-intercept points and then draw a curvy line through them,you will not know if you got the x-intercepts even close to being correct. <span>The only way you can be sure of your x-intercepts is to set the quadratic equal to zero and solve. So its a matter of guessing from the pictures. Basicaly said, the calculator won't give you the exact result.</span>
4 0
4 years ago
Read 2 more answers
SOMEONE PLEASE HELP WILL GIVE 25 POINTS
melamori03 [73]

Answer:

Step-by-step explanation:

g(x) is vertical translation of f(x) by -12 units

4 0
3 years ago
Other questions:
  • Evaluate each expression : 12 - |-8| 7 =
    9·1 answer
  • fter production, a computer component is given a quality score of A, B, and C. On the average U of the components were given a q
    10·1 answer
  • Rotate the triangle on the graph 90° counterclockwise about the origin. Determine the orientation of the triangle after the rota
    12·1 answer
  • Tickets for a certain show cost ​$17​, ​$21​, ​or, for VIP​ seats, ​$40. If ten times as many ​$17 tickets were sold as VIP​ tic
    7·1 answer
  • Look at the question below.
    10·2 answers
  • At the grocery store, 4 bottles of soda cost $5. What is the cost of 6 bottles of<br> soda?
    8·2 answers
  • Can someone help me plead
    9·1 answer
  • What fraction has the greatest value? ​
    8·2 answers
  • Algebra 2<br> -13y^2 + 36 = -y^4
    14·1 answer
  • Help pls and ty! What is the area of this trapezoid?
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!