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
BARSIC [14]
3 years ago
8

Which expression is equivalent to 4 - (-7)​

Mathematics
2 answers:
yarga [219]3 years ago
5 0

Answer:

4 + 7

(also 11)

Step-by-step explanation:

MAXImum [283]3 years ago
3 0

Answer:

7+4 or 11

Step-by-step explanation:

7+4 since 4-(-7) makes a mega plus.

You might be interested in
PLSSS HELP ME WITH MATH
labwork [276]

Step-by-step explanation:

always remember, equations and inequalities are like a scale with 2 pans (left and right).

a variable is like a placeholder, an empty spot on the pans. and the expressions on both sides are kind of the conditions for the things to put in these empty spots so that the status of the scale stays unchanged.

for an equation the scale has to stay balanced all the time.

and in an inequality one side is heavier that the other (it normally does not matter how much heavier) with "<" or ">" signs, or the scale can be also balanced with "<=" or ">=" signs. just the other side must never be heavier.

A

so, in our case here

2x - 5 = 3

yes, the solution (the ONLY solution, actually) is x = 4. no other value of x allows the scale to be balanced.

2x - 5 >= 3

well, since it is a ">=" sign, we can be lazy and treat it like the equation above, and x = 4 is therefore a valid solution for the inequality too.

but so is every other value of x that makes the left side "heavier". what about e.g. 5 ?

2×5 - 5 >= 3

10 - 5 >= 3

5 >= 3

true, great ! so, e.g. x = 5 is also a valid solution.

what else ?

let's simplify the inequality

2x - 5 >= 3

2x >= 8

x >= 4

so, really every value of x that is greater or equal to 4 is a valid solution for the inequality.

B

-2x - 5 = 3

yes, the solution (the ONLY solution, actually) is x = -4. no other value of x allows the scale to be balanced.

-2x - 5 >= 3

well, since it is a ">=" sign, we can be lazy and treat it like the equation above, and x = -4 is therefore a valid solution for the inequality too.

but so is every other value of x that makes the left side "heavier". what about e.g. -5 ?

-2×-5 - 5 >= 3

remember, -×- = +

10 - 5 >= 3

5 >= 3

true, great ! so, e.g. x = -5 is also a valid solution.

what else ?

let's simplify the inequality

-2x - 5 >= 3

-2x >= 8

x <= -4

a multiplication or division by a negative value flips the inequality sign, because such an operation makes a light weight heavy and a heavy weight light.

so, really every value of x that is less or equal to -4 is a valid solution for the inequality.

3 0
2 years ago
What is 548.6814 rounded to the nearest thousandth
tankabanditka [31]
5 486 814 rounded to the nearest  thousandth so here this is 6th digit:
because 7th digit is 4 we round down:
548.6814≈548,681
 
5 0
3 years ago
Read 2 more answers
The first 5 multiples of 18 after 0 are?​
ololo11 [35]

Answer:

18,36,54,72,90 are first five multiples of 18

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
Finding the difference between 827 and 513
koban [17]
Answer: 314

Take each number place and subtract them from each other.
4 0
3 years ago
Read 2 more answers
The number of cups of flour varies directly as the number of rolls made. Four cups of flour are needed to make 24 rolls. How muc
kiruha [24]
14 cups of flour is needed to make 36 rolls. I think it is
6 0
3 years ago
Read 2 more answers
Other questions:
  • Is is square root of 1.6875 a rational number
    5·1 answer
  • A Ferris wheel can accommodate 65 people in 30 minutes how many people could ride the Ferris wheel in 2 hours what was the rate
    11·1 answer
  • If u(x)=-2x^2+3 and v(x)=1/x, what is the range of (uov)(x)
    5·2 answers
  • The bill (parts and labor) for the repair of a car is $1110.50. The cost of the parts is $575. If the car mechanic chargers $42
    9·1 answer
  • Angle M and Angle N are vertical angles. The measure of Angle M is 3x – 18. The measure of Angle N is x + 30.
    9·1 answer
  • Add the expressions four -2/3 B +1/4 a and 1/2 a+1/6b-7. What is the simplified some?
    15·1 answer
  • Which logarithmic equation is equivalent to 8^2=64
    11·2 answers
  • Amir can run 15 kilometers in one hour. how many kilometers can amir run per minute? there are 60 minutes in 1 hour.
    5·2 answers
  • Which expression is equivalent to 5 (h + 9)? <br>45 h 14 h 5 h + 9 5 h + 45
    14·2 answers
  • Determine the distance between the two points (1, -3) and (-4, 3) plotted on the graph below.
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!