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
Zina [86]
3 years ago
14

Find the solutions -2x+8y=14 -2x-2y=-26

Mathematics
1 answer:
emmasim [6.3K]3 years ago
3 0
X=-33 y= 10

Leave first row the same multiply 2nd row by -1
-2x+8y=14
2x+2y=26
10y= 40
Y=4
-2x+8(10)=14
-2x+80=14
You might be interested in
Add: 4/10 + 5/100<br><img src="https://tex.z-dn.net/?f=%20%5Cfrac%7B4%7D%7B10%7D%20%20%2B%20%20%5Cfrac%7B5%7D%7B100%7D%20%20%3D%
tensa zangetsu [6.8K]
9/20 is your answer! Have a nice day and maybe even consider a brainliest!
8 0
1 year ago
Which quadratic equation has the roots -1+4i and -1-4i
AysviL [449]

Answer:

C

Step-by-step explanation:

Solve the quadratic in answer choice C using the quadratic formula:

x=\frac{-b+/-\sqrt{b^2-4ac} }{2a}.

Here a=1, b=2, and c=17.

Substitute and you'll have:

x=\frac{-b+/-\sqrt{b^2-4ac} }{2a} =\frac{-2+/-\sqrt{(-2)^2-4(1)(17)} }{2(1)}=\frac{-2+/-\sqrt{4-68}}{2)}

\frac{-2+/-\sqrt{-64} }{2}=\frac{-2+/-8i }{2}=-1+/- 4i


6 0
3 years ago
Rewrite each number sentence using numerals and symbols. Find the difference between 4 and 3 and then add 7 *
Zina [86]

Answer:

8

Step-by-step explanation:

4-3+7=8

8 0
3 years ago
What is the sum of the polynomials? 11x^2-5 + x+4
liraira [26]

Answer:

11x^{2}+x-1

Step-by-step explanation:

we have

(11x^{2} -5) +(x+4)

we know that

The sum of a quadratic equation and a linear equation will be a quadratic equation

so

Combine like terms

(11x^{2})+(x)+(-5+4)

11x^{2}+x-1

5 0
3 years ago
Read 2 more answers
Will give brainlest answer please help
Tju [1.3M]

Answer:

-1

Step-by-step explanation:

You can do this two ways, the easiest way is to look at the graph.

What is g(4) means: When the x value equals 4, what does y equal?

Look for the coordinate with the x-value of 4 (it's asking for g(4). Now if you look at the y-value of the coordinate, it should tell you what g(4) is. So since the coordinate is (4,-1), g(4) is -1.

Another way to do it is to plug in 4 for x in the equation. So...

g(4) = -[f(4) - 3)]

g(4) = -[4 - 3]

g(4) = -[1]

g(4) = -1

7 0
2 years ago
Other questions:
  • Find the sales tax. Then find total cost of the item.
    14·1 answer
  • 4.2.9<br> For f(x)=2*, find f (7/2) <br> How do you solve this
    8·1 answer
  • At a school 40% of the sixth graders students said that hip hop is their favorite kind of music. If 100 sixth graders students p
    11·2 answers
  • Let theta be an angle in quadrant III such that cos theta=-3/5 . Find the exact values of csc theta and tan theta .
    13·2 answers
  • Find the y-intercept of the following equation. Simplify your answer.
    12·1 answer
  • Is the set of ordered pairs above a function? {(3,4), (1,5), (-9,0), (3,-2)}
    10·1 answer
  • Two inches is cut from a board. The remaining board is 10 inches long. Write an equation to represent the situation.
    11·1 answer
  • Simplify. Rewrite the expression in the form a^n. A • A^7
    10·1 answer
  • Find the Area of this please.​
    10·1 answer
  • I need all the points marked
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!