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
marshall27 [118]
3 years ago
15

HELP!! PLEZ A math class is having a discussion on how to determine if the expressions 4 x minus x + 5 and 8 minus 3 x minus 3 a

re equivalent using substitution. The class has suggested four different methods.
Which describes the correct method?
Both expressions should be evaluated with one value. If the final values of the expressions are both positive, then the two expressions must be equivalent.
Both expressions should be evaluated with one value. If the final values of the
expressions are the same, then the two expressions must be equivalent.
Both expressions should be evaluated with two different values. If for each substituted value, the final values of the expressions are positive, then the two expressions must be equivalent.
Both expressions should be evaluated with two different values. If for each substituted value, the final values of the expressions are the same, then the two expressions must be equivalent.
Mathematics
1 answer:
Zolol [24]3 years ago
4 0

Answer:

chcikennnn

Step-by-step explanation:

You might be interested in
Hi, I have a problem with homework can anyone help me, please?<br> f(x) =x3·ln (2x) + 7 sin(7)
dsp73

2(3x)+7sin(7)

=6x+7sin(7)

this is all i could do

4 0
3 years ago
Match the graph with it's equation
-BARSIC- [3]

Answer:

the answer would be C!!!!! thta is because it is passing by the same numbers as the answer choice

Step-by-step explanation:

6 0
3 years ago
Solve the system of equations.<br> – 7x – 10y = 45<br> -3x - 5y = 25<br> x =<br> Y =
irina [24]

Answer:

The solution is (-5, -2).

Step-by-step explanation:

We'll use "elimination by addition and subtraction."

Multiply the second row by -2.  Our system

– 7x – 10y = 45

-3x - 5y = 25

becomes:

– 7x – 10y = 45

+6x  + 10 y = -50

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

  -x             =  5, so that x = -5.

Substituting -5 for x in the second equation results in

-3(-5) - 5y = 25, or  15 - 5y = 25.  This reduces to

-5y = 10, so that y must be -2.

The solution is (-5, -2).

4 0
3 years ago
Solve PV = nRT for R.
nlexa [21]

Answer:

R = \dfrac{PV}{nT}

Step-by-step explanation:

PV = nRT

nRT = PV

R = \dfrac{PV}{nT}

7 0
2 years ago
PLS HELP ME WILL GIVE 25 PONITS AND BRAINLIEST THE BOTS KEEP ON STEALING MY POINTS
Bumek [7]

pls give me thank on my Question

5 0
3 years ago
Other questions:
  • Maria put $500 into a savings account. She made no more deposits or withdrawals. The account earns 2% simple interest per year.
    9·1 answer
  • Quadrilateral
    6·1 answer
  • What is another name for 23 ten thousands
    14·2 answers
  • The perpendicular bisector of the line segment connecting the points $(-3,8)$ and $(-5,4)$ has an equation of the form $y = mx +
    13·1 answer
  • In four years Cranston’s age will be the same as Terrill’s age is now. In two years time, Terrill will be twice as old as Cranst
    9·2 answers
  • 44.197 rounded to the nearest whole number
    5·2 answers
  • 5/8 divided by 8 3/10
    14·1 answer
  • Pythagorean
    10·1 answer
  • John Marlow's total income last year was $31,300. Of that amount, he spent
    10·1 answer
  • How can I factor 5x^2 + 26x - 24 = 0 using the completing the square method.
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!