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
galben [10]
3 years ago
11

Describe the first step you would take in solving 5x +3x -7

Mathematics
2 answers:
arsen [322]3 years ago
7 0

adding link terms, meaning adding the 2 things that have the same meaning, 5x + 3x = 8x so the answer is

Adding link terms

and the answer to the number problem is 8x - 7

olga55 [171]3 years ago
4 0

Combine Like Terms:

5x+3x+−7

(5x+3x)+(−7)

8x+−7

You might be interested in
*20 POINTS*
Paraphin [41]

Answer:

If you want to use the Rational Zeros Theorem, as instructed, you need to use synthetic division to find zeros until you get a quadratic remainder.

P: ±1, ±2, ±3, ±6  (all prime factors of constant term)

Q: ±1, ±7              (all prime factors of the leading coefficient)

P/Q: ±1, ±2, ±3, ±6, ±1/7, ±2/7, ±3/7, ±6/7  (all possible values of P/Q)

Now, start testing your values of P/Q in your polynomial:

f(x)=7x4-9x3-41x2+13x+6

You can tell f(1) and f(-1) are not zeros since they're not = 0Now try f(2) and f(-2):

f(2)=7(16)-9(8)-41(4)+13(2)+6

       112-72-164+26+6 ≠ 0

f(-2)=7(16)-9(-8)-41(4)+13(-2)+6

       112+72-164-26+6 = 0  OK!! There is a zero at x=-2

This means (x+2) is a factor of the polynomial.

Now, do synthetic division to find the polynomial that results from

(7x4-9x3-41x2+13x+6)÷(x+2):

-2⊥ 7   -9   -41    13     6

         -14   46   -10    -6          

      7  -23   5       3     0     The remainder is 0, as expected

The quotient is a polynomial of degree 3:

7x3-23x2+5x+3

Now, continue testing the P/Q values with this new polynomial.  Try f(3):

f(3)=7(27)-23(9)+5(3)+3

      189-207+15+3 = 0  OK!!  we found another zero at x=3

Now, another synthetic division:

3⊥ 7   -23    5     3

          21   -6   -3_

    7    -2    -1    0  

The quotient is a quadratic polynomial:

7x2-2x-1  This is not factorable, you need to apply the quadratic formula to find the 3rd and 4th zeros:

x= (1±2√2)÷7

The polynomial has 4 zeros at x=-2, 3, (1±2√2)÷7

Step-by-step explanation:

7 0
3 years ago
How is every one tooday
emmainna [20.7K]

Answer:

I'm doing fine, how are you?

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
Solve for y: 3(2y + 4) = 4(2y – 1/2).<br> The solution is y =
tatyana61 [14]

Answer:

Answer y=7

Step-by-step explanation:

6 0
3 years ago
In 1970, the average length of a major league baseball game was 150 minutes compared to 180 minutes in 2018. Calculate the absol
Pavlova-9 [17]

Answer:

  • 30 min
  • 20%

Step-by-step explanation:

The absolute change in game length is ...

  (180 min) -(150 min) = 30 min . . . . change in game length

__

The relative change is expressed as a fraction of the original game length:

  (30 min)/(150 min) × 100% = 20% . . . . relative change in game length

6 0
3 years ago
Discuss four ways to keep the nervous system healthy
geniusboy [140]

Exercise regularly.

Do not smoke or use tobacco products.

Get plenty of rest.

Eat a balanced diet.  

7 0
2 years ago
Read 2 more answers
Other questions:
  • Evaluate 2/3+3/4 <br> 1and5/12
    7·1 answer
  • Find the coordinates of the midpoint of the line segment AB, where A and B have coordinates: A(4,-7) and B(-2,1)
    15·1 answer
  • Sasha works at a greenhouse during the summer . She has to wrap mum plants with colored foil . There are 130 rows with 40 mums i
    11·1 answer
  • Jane and Joan are twins. They both went to work at age 25 with similar jobs, and at the end of each year they will be receiving
    9·1 answer
  • 12) g = xy/c , for x
    5·1 answer
  • A scale drawing of Jade's living room is shown below:
    11·2 answers
  • A piggy bank contains 4 quarters, 18 dimes, 10 nickels, and 8 pennies. A coin is chosen at random, not replaced, then another is
    5·2 answers
  • Jake took $20.00 to the shop and asked that it be changed into 5-cent coins. How many coins did he get?
    14·1 answer
  • Alan is tiling a 6 ft-by-8 ft rectangular floor with square
    14·2 answers
  • The distance from point (2,1) to point (7,13) is:<br> O V12<br> O /14<br> O 10<br> O 62<br> O 13
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!