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
spin [16.1K]
3 years ago
10

Use the distributive property and then combine like terms to simplify this expression: 9x + 5(x + 4)

Mathematics
1 answer:
Ilia_Sergeevich [38]3 years ago
3 0

Answer:

14x+20

Step-by-step explanation:

9x + 5(x + 4)

Apply the Distributive Property:

9x+5(x+4)=9x+5x+20

9x+5x+20

Combine Like Terms:

The like terms are 9x and 5x.

9+5=14

9x+5x+20=14x+20

The simplified equation is: 14x+20

You might be interested in
Help please help me pleaseeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee
horsena [70]

Answer:

x=2/5

Step-by-step explanation:

4 0
2 years ago
What are the solutions of the equation x^4-9x^2+8=0? Use u substitution to solve.
vodka [1.7K]

Answer:

The answer is the second option

Step-by-step explanation:

Let u=x^2.

( {x}^{2} ) {}^{2}  - 9( {x}^{2} ) + 8( {x}^{2} ) {}^{0}

{u}^{2}  - 9u + 8

(u - 1)(u - 8)

u = 1

u = 8

Set this equal to x^2

{x}^{2}  = 1

x = 1

or

x =  - 1

{x}^{2}  = 8

x = 2 \sqrt{2}

or

x =  - 2 \sqrt{2}

4 0
2 years ago
(7,-1) and ( 21,-5) what is the slope
mart [117]

Answer:

-2/7

Step-by-step explanation:

Going from (7,-1) to ( 21,-5) we see x (the 'run') increasing by 14 and y (the 'rise') decreasing by 4.  Thus, the slope of the line connecting these two points is m = rise/run = -4/14, or -2/7.

8 0
3 years ago
Solve for x -2x - 5 + 4x = 7 + 6x Question 2 options: x=3 x=2 x= -3 x= -2
noname [10]

Answer:

x=-4

Step-by-step explanation:

x - 2x - 5 +4x = 7 + 6x

           3x - 5 = 7 +6x

          -3x             -3x

                 -5 = 7 + 3x

                 -7    -7

                -12 = 3x

              -12/3= 3x/3

                  -4 = x              

3 0
3 years ago
A dentist wants to find out how often her patients floss their teeth. Which samples are biased? Check all that apply.
professor190 [17]

Answer:

Answers 2,3, and 4 are all biased.

Step-by-step explanation:

She has to check ALL her patients to be unbiased. Otherwise she is showing favoritism and bias.

5 0
2 years ago
Read 2 more answers
Other questions:
  • Match the mathematical expression with its translation
    8·1 answer
  • The _______ form of a quadratic equation is written y = a(x - h)2 + k.
    12·1 answer
  • What is the 3rd term in (a-3b)^6
    13·1 answer
  • You work for a marketing firm that has a large client in the automobile industry. You have been asked to estimate the proportion
    14·1 answer
  • Help please! Quick math question
    15·1 answer
  • PLEASE HELP ASAP! Will give BRAINLIEST! Please answer correctly!<br> No guessing!
    6·1 answer
  • If a = 7 and b = 11, what is the measure of ∠B? (round to the nearest tenth of a degree)
    9·1 answer
  • The volume of a rectangular prism with a length of 3.5 m, a width of 8 m, and a height of 6
    12·1 answer
  • Pls help i really really need it!! i'm really tiered and would appreciate your help. :)
    8·1 answer
  • 1. At Parker's Pizza Parlor, the total cost of an order of 5 slices of pizza is $12.37. This price includes $1. 12 in
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!