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
expeople1 [14]
3 years ago
14

Please Help

Mathematics
2 answers:
dezoksy [38]3 years ago
7 0
System of eqns
<span>
2x + y = −4 and

y = 3x + 2 

substituting second eqn into 1st

2x + (3x + 2) = -4

2x + 3x = -4 - 2

5x = -6

x = -6/5

y = 3*(-6/5) + 2 = (-3*6 + 2*5)/5 = (-18 + 10)/5

= -8/5

</span><span>negative 6 over five comma negative 8 over 5 </span>
lesya692 [45]3 years ago
6 0
2x+3x+2=-4(cause y=3x+2)
5x=-6
x=-6/5
f(-6/5)=-8/5
negative 6 over 5
You might be interested in
Giving right answer a branleist
Kobotan [32]

Answer:

(a) 860, (b) 860, (c) 860 and 186

Step-by-step explanation:

(a) 860

860 ends with a zero or a five, 186 and 863 do not.

(b) 860

860 ends with a zero, 186 and 863 do not.

(c) 860, 186

860, the 0 is even. 186, the 6 is even. 863, the 3 is not even.

7 0
2 years ago
Solve y=x+5 and 2x-3y=4
stepan [7]

Answer:

x= -19

y= -14

Step-by-step explanation:

Substitution.

It tells you what y is already. You substitute that into the second equation and then solve. Then you use that answer and substitute it back into the first equation's x, and then you'll get your full answer.

Hope this helps <3

4 0
1 year ago
Read 2 more answers
What is the value of the function when x = 4?<br><br> y = 3x + 7
adelina 88 [10]

2x - 3y = 7 and -3x + y = 7..multiply Equation 2 by THREE and add to Equation 1
-9x + 3y = 21...........................watch the y's disappear
-7x........ = 28
x = -4
substitute -4 instead of x in either of the ORIGINAL equations

2x - 3y = 7
2(-4) - 3y = 7
-8 -3y = 7..........add 8 to both sides
-3y = 15
y = -5

im not sure


8 0
3 years ago
Read 2 more answers
What are the zeros of f(x) = x2 - x - 20?
sattari [20]

Answer:

(-4,0) and (5,0)

Step-by-step explanation:

Factor.

f(x) = x^2 -x - 20

Factors of -20 that when are added they equal -1

-5 and 4

(x-5) (x+4)

x=5 and x=-4

5 0
3 years ago
The table shows the unit prices (per pound) of tomatoes
blondinia [14]

Answer:

store B, C, and D

Step-by-step explanation:

6 0
3 years ago
Other questions:
  • Simplify: 3.7|4-13|+7^2 -61.86<br> A) -144.16<br> B) 16.16<br> C) 20.44<br> D) 86.44
    15·2 answers
  • What is the average of the integers from 25-41
    12·2 answers
  • A line has a slope of -2/3 and passes through the point (-3,8). What is the equation of the line?
    10·2 answers
  • Need help please please someone help me
    14·2 answers
  • Addition of which two number is 736?​
    11·1 answer
  • Find the equation of the line.<br> Use exact numbers.<br> y =<br> X +
    6·1 answer
  • 100POINTS AND I"LL MARK BRAINLIEST
    9·2 answers
  • Answer choices <br> 10%<br> 30%<br> 25%<br> No links no links I will report
    5·1 answer
  • Ivan is painting 3 walls in his bedroom. Each wall measures 9 3/4 feet tall by 14 1/4 feet wide. Ivan needs to estimate the tota
    9·1 answer
  • Find the sum of 6x^2+10x-16x 2 +10x−1 and -5x^2-2x+1−5x^2 −2x+1.
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!