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
OverLord2011 [107]
3 years ago
13

What expression is the simplified form of “-12+5a-a-6a+8a+8+3a”? Please explain your reasoning.

Mathematics
2 answers:
kramer3 years ago
4 0

Combine like terms:

-12 + 5a - a - 6a + 8a + 8 + 3a

-12 + 5a - a - 6a + 8a + 8 + 3a

5a - a = 4a

4a - 6a = -2a

-2a + 8a = 6a

6a + 3a = 9a

-12 + 8 = -4

Answer

9a - 4

ZanzabumX [31]3 years ago
4 0
The answer is 9a-4.the work is there hope this helps if it does please mark brainliest

You might be interested in
2 points) Suppose w=xy+yzw=xy+yz, where x=et, y=2+sin(t)x=et, y=2+sin⁡(t), and z=2+cos(3t)z=2+cos⁡(3t). A ) Use the chain rule t
Olenka [21]

Answer:

\frac{\partial w}{\partial t}  = y(e^t) +(x+z)*(cos(t))  - 3y*sin(3t)

Step-by-step explanation:

First, note that

\frac{\partial x}{\partial t}  = e^{t} \\\frac{\partial y}{\partial t}  = cos(t)\\

And using the chain rule in one variable

\frac{\partial z}{\partial t}  = -3sin(3t)

Now remember that the chain rule in several variables sates that

\frac{\partial w}{\partial t}  = \frac{\partial w}{\partial x} * \frac{\partial x}{\partial t} + \frac{\partial w}{\partial y} * \frac{\partial y}{\partial t} + \frac{\partial w}{\partial z} * \frac{\partial z}{\partial t}

Therefore the chain rule in several variables would look like this.

\frac{\partial w}{\partial t}  = y(e^t) +(x+z)*(cos(t))  - 3y*sin(3t)

6 0
3 years ago
Read 2 more answers
Challenge An arts academy requires there to be 4 teachers for every 76 students and 3 tutors for
klio [65]

Answer:

12. 5

11.

10

10

15. 7

14. 11

2

=

16

16

18. 3

+

11

17

3

4

co

loo

8

Step-by-step explanation:

12. 5

11.

10

10

15. 7

14. 11

3 0
2 years ago
Please help with question 6
Kitty [74]

Answer:

y = -3x - 1

Use the methods on your other questions.

6 0
2 years ago
Y=? What is Y? Please help me!
kumpel [21]
Answer:   y = 6 mi.  .
______________________________________________
Explanation:
______________________________________________
Area of a triangle = (½) * (base) * (height) ;

or,  A = (½) * b * h ;  or,  A = b*h / 2 ;
_____________________________________
Given:  A = 24.3 mi ² ;
           b = 8.1 mi 
___________________
Find the height, "h" ;  (in units of "miles", or , "mi" ).
__________________________
   Plug in the known values into the formula:

24.3 mi ² = (½) * (8.1 mi) *(h) ;
_____________________________
Solve for "h" (height) ;
_____________________________
(½) * (8.1 mi) = 4.05 mi  ;
______________________________
Rewrite: 
____________________________
24.3 mi² = (4.05 mi) *(h) ;  Solve for "h" ;
_________________________________________
 Divide each side of the equation by "(4.05 mi)" ; to isolate "h" on one side of the equation ; and to solve for "h" ; 
__________________________________________
   24.3 mi²  / 4.05 mi  = (4.05 mi) *(h)  / 4.05 mi ;
                                 
              →  6 mi  = h ;  ↔  h = 6 mi. 

              →      h = y = 6 mi. 
____________________________________________
7 0
3 years ago
Read 2 more answers
Kyra started with the number 56.8. If she ended with 568what did she do to the number
svet-max [94.6K]
Wow this ones easy.....Your in high school and i'm in middle school LOL...I'll answer the question.You have to <span>multiplied it by 10</span>
4 0
3 years ago
Read 2 more answers
Other questions:
  • ∠C and ​ ∠D ​ are vertical angles with m∠C=−x+26 and m∠D=2x−10 .<br><br><br><br> What is m∠D ?
    6·1 answer
  • What is F? In the equation
    5·2 answers
  • Solve for y -5y+8=-3y+10 what is the answer
    9·2 answers
  • Figure LMNO maps to L’M’N’O’ by a 125° rotation about point T Which congruency statement is correct?
    6·2 answers
  • URGENT
    8·1 answer
  • A dance floor is shaped like a square with an area of 196 square feet. Find the length of one side of the dance floor.
    5·1 answer
  • the bookstore has 6 shelves of books about animals. there are 30 books on each shelf. how many books about animals does the book
    7·1 answer
  • The door has marbles in it 3/10 of the marbles are red 5/10 of the marbles are blue two tenths of the marbles are green which of
    7·1 answer
  • Can someone answer this
    14·2 answers
  • Which sentence can represent the inequality 3. 5 x greater-than-or-equal-to 7? The sum of 3. 5 and a number is greater than 7. T
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!