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
professor190 [17]
3 years ago
15

Solve the system. x + y = 8 2x2 – y = –5 Add the equations

Mathematics
2 answers:
mixas84 [53]3 years ago
6 0

Answer: Solve the system. x + y = 8 2x2 – y = –5 Add the equations, then choose the result. 3x2 = –13 3x2 = 3 2x2… Get the answers you need, now!

2 answers

 

·

 

Top answer:  

2x^2 - y = -5 x + y = 8----------------add2x^2 + x = 3 <==** 2x^2 and x cannot be add

Step-by-step explanation: HAVE A GREAT DAY

Leya [2.2K]3 years ago
5 0

Answer:

X+Y = 8

2X-Y =-5

(X+2X+Y-Y)=8-5

3X=3

X=1

Y:

1+Y=8

Y=8-1

Y=7

You might be interested in
Someone please help. Please explain how I should do it!
Ede4ka [16]

Answer:

Step-by-step explanation:

if m and n are irrational number then the product of mn sometimes rational and sometime irrational

ex: √5 *√2=√10 irrational

ex: √8*√2=√16=4 rational

b-y=|x|+3

explain why |x|+3≥|x+3|

absolute value of any number is always positive

x           |x|+3          ≥            |x+3|

1              4              =               4             in this case equal

2             5                                5

-2             5             ≥                 1             in this case |x|+3≥|x+3|

in case of negative value of x then |x|+3>|x+3|

7 0
3 years ago
How much has the value of y changed between the points (-8, 4) and (8, -4)?
Goryan [66]

Answer:

The answer is I think B

Step-by-step explanation:

I just took the test

7 0
3 years ago
A car travels 26 1/2 miles in 45 minutes what is the car rate of speed in miles per hour​
Dimas [21]

Answer and work in picture.

4 0
3 years ago
1/(x-2)+1/(x+3)=1/5 solve the problem for me​
Gennadij [26K]

════════ ∘◦❁◦∘ ════════

<h3>Final value : x² -9x - 11</h3>

════════════════════

<h3>Step by step </h3>

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

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

\frac{2x + 1}{ {x}^{2} + 3x - 2x - 6 }  =  \frac{1}{5}

\frac{2x + 1}{ {x}^{2}  + x - 6}  =  \frac{1}{5}

2x + 1 = ⅕ × (x² + x - 6)

2x + 1 = ⅕x² + ⅕x - 6/5

1/5x² +1/5x - 2x - 6/5 - 1 = 0

1/5x² -9/5x - 11/5 = 0

x² - 9x - 11 = 0. #times by 5

════════════════════

#Give me brainliest pls im tired typing all of this

8 0
3 years ago
(3,-3), m = 1/3 using as a fraction write an equation in point -slope form
Vilka [71]
Y2-y1=m(x2-x1)
Y- (-3)=1/3(x-3)
5 0
3 years ago
Read 2 more answers
Other questions:
  • Help with question 17!
    7·1 answer
  • The sum of two numbers is 64. Twice the smaller number is 10 less than the larger number. What are the numbers?
    15·2 answers
  • Two similar figures have sides in the ratio of 2:3. If a side of the smaller triangle has a length of 7, what is the length of t
    11·1 answer
  • Write the slope intercept form of the line that passes through (6,39)<br>(4,27)​
    8·1 answer
  • a bicycle is sold at Rs 9040 after allowing 20% discount and imposing 13% vat find the Marked price of the bicycle​
    9·1 answer
  • I need help with this ​
    9·1 answer
  • Can someone explain to me why I should have used the point (-2, 4) for this equation instead of (-7. -3)?
    12·1 answer
  • What types of lines create alternate interior angles?
    12·1 answer
  • Help i don't know what i'm doing​
    5·1 answer
  • Help with these please:) trig SOH CAH TOA right angle triangles
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!