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
vichka [17]
3 years ago
11

Which of the following is equivalent to x2 + (x - 7) - (4x + 3)?

Mathematics
2 answers:
Iteru [2.4K]3 years ago
5 0

Answer:

D. x^2 -3x-10

Step-by-step explanation:

makkiz [27]3 years ago
4 0
The correct answer is D
You might be interested in
Solve the system of equations algebraically. Show all of your steps
Katyanochek1 [597]
I am going to explain this using the substitution method, considering it appears to be the best in this situation.

We know (from the bottom equation) that y can equal 3x+20. Using this knowledge, we substitute the y in the top equation for 3x+20. Now, we have an equation that looks like this:

3x+20=x^2+2x

Now we need to move x to one side and then do some radicals (square roots).
Subtract the 2x on the right (since it is smaller, negatives = NONONO), which will give you

x+20=x^2

Now, we take the square root of both sides to get

rad(x+20)=x

Now we have to simplify. 20 doesn't have a square root, but 4 goes into 20, and 4 has a square root of 2. This now becomes

2rad(x+5)

This doesn't simplify any further... we have a problem... no way to isolate x as far as my knowledge goes... Sorry, can't help you any further than that, but another person or your teacher might be able to. R.I.P...
4 0
3 years ago
What is the solution to the system of equations<br><br> y=2x-3.5<br><br> x-2y=-14
PIT_PIT [208]
Y-2x=-3.5
x-2y=-14
then multiply the first term by 2
2y-4x=-7
x-2y=-14
then sum them
-3x=-21
x=-7
y=3.5
5 0
3 years ago
39,012 in expanded form
Helen [10]
30,000 + 9,000 + 10 + 2
6 0
3 years ago
What is more precise 7 m or 7.7 m
zimovet [89]
7.7 because it is more specific into the whole number but not just that and the decimal
3 0
3 years ago
What is the square root of 3
KiRa [710]

Answer: 1.73205080757

Step-by-step explanation: The square root of 3 is the positive real number that, when multiplied by itself, gives the number 3. It is more precisely called the principal square root of 3, to distinguish it from the negative number with the same property. It is denoted by √3. The square root of 3 is an irrational number.

8 0
2 years ago
Other questions:
  • 12(3w+8)=25 what is the w
    11·1 answer
  • Mike has a 9 foot long board. He needs to cut it into 12 equal parts. How many feet long should each section be?
    14·1 answer
  • What is the explicit formula for the sequence of even integers?
    9·1 answer
  • What is p(4,4) on two consecutive rolls of a number cube
    12·1 answer
  • H = 3a + 28.6
    9·1 answer
  • What is the exact value of cos 5pi/4 radians?
    15·1 answer
  • What are the dimensions of the matrix?
    12·1 answer
  • PLEASE HELP ILL GIVE BRAINLIEST
    13·1 answer
  • A plate moving at a rate of 4 is moving toward a plate that is 10,000 km away. In how many years will the plates collide?
    12·2 answers
  • Please help asap no one has been able to solve it :(<br> I need help
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!