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
oksano4ka [1.4K]
3 years ago
13

Describe three different substitutuion method

Mathematics
1 answer:
ankoles [38]3 years ago
7 0

elimanation  variations matrix

You might be interested in
Find the measure of an interior angle and exterior angle of a regular 24gon
Julli [10]

Answer:

Interior Angle: 165°

Exterior Angle: 15°

Step-by-step explanation:

So first you have to find the sum of all interior angles of a polygon with <u>24 sides</u>. This can be found using the formula:

sum = ( <em>n</em> - 2 ) * 180°     where '<em>n</em>' is the number of sides.

When '<em>n</em> = 24' then the sum is:

sum = ( 24 - 2 ) * 180°

Simplify and solve.

sum = 22 * 180°

sum = 3960°

Since there are 24 sides to the polygon, there are 24 interior angles. <u>Assuming that this polygon is equilateral</u>, you can surmise that:

<em>Interior Angle</em> = sum° / <em>n</em>   where n is the number of sides,

3960° / 24 = 165° = Interior Angle

Using that information, and combine it with the [Supplementary Angles Theorem] the exterior angle can be found by:

165° + x = 180°

Solve for x.

8 0
2 years ago
Explain how a calculator shows the remainder when you divide 14 5 by 8
Vladimir [108]
If you put 145 divided by 8 the remainder on a calculator would come out as a decimal
8 0
3 years ago
Read 2 more answers
B is the midpoint of AC. If Ab= x +5 and BC = 2x-11, find the measure of Ab.
LuckyWell [14K]

__________________________

Measurement of "AC" :

(x + 5) + (2x <span>− 11) ;
________________________

Find the measurement of "AB" [which is: "(x+5)" ]: 
______________________________________________
First, simplify to find the measurement of "AC" :
________________________________________
 </span>(x + 5) + (2x − 11) ;

=  (x + 5) + 1(2x − 11) ;

=   x + 5 + 2x − 11 ;

 → Combine the "like terms" ; 

   x + 2x = 3x ;
   
   5 − 11 = - 6 ;
______________
to get:  3x − 6 ; 
_______________
So,  (x + 5) + (2x − 11) =  3x − 6 ;
_______________________________
Solve for:  "(x + 5)"
_______________________________

We have: 
_______________________________

(x + 5) + (2x − 11) =  3x − 6  ;

Subtract:  "(2x − 11)" ;  from EACH SIDE of the equation ;
                                      to isolate "(x + 5)" on one side of the equation; 
                                      and to solve for "(x + 5)" ;
________________________________________________________
    →  (x + 5) + (2x − 11) − (2x − 11) =  (3x − 6) − (2x − 11) ;
  
         → (x + 5)  = (3x − 6) − (2x − 11) ;
_________________________________________________
  Note:  Simplify:  "(3x − 6) − (2x − 11)" ;

     →  (3x − 6) − (2x − 11)  ;
 
         =  (3x − 6) − 1(2x − 11) ;
 
         =   3x − 6 − 2x + 11 ;
__________________________
   →  Combine the "like terms" :
_____________________________
         +3x − 2x = 1x = x ;
  
          -6 + 11 = 5 ; 
_____________________________
To get:  x + 5 ; 

So we have:
______________________________
 x + 5 = x + 5 ; 
______________________________

So, x = all real numbers.

x = <span>ℝ </span>
4 0
3 years ago
An orchard sells 4 pounds of apples for one dollar how much would 5 pounds of apples cost
Mrac [35]

Answer:

1.25

Step-by-step explanation:4 pounds equal to 1 dollar so that means that each pound equals to 0.25 cents. SO, now you multiply 0.25 x 5= 1.25

5 0
2 years ago
F(x)= 3/4x +12 <br> what is the y intercept of f-1(x)
lora16 [44]

Answer:

12

Step-by-step explanation:

3/4 is slope and 12 is why intercept

3 0
3 years ago
Other questions:
  • Please help me with this
    15·1 answer
  • Which of the following employees has the latest gross pay
    6·1 answer
  • PLEASE HELP ME✍️✍️✍️✍️✍️✍️✍️✍️✍️✍️✍️✍️✍️✍️✍️✍️✍️✍️ ✍️✍️✍️✍️
    10·1 answer
  • Find the volume of the cone. Round your answer to the nearest hundredth.
    6·1 answer
  • Claire traveled 701 miles. She drove 80 miles every day. On the last day of her trip she only drove 61 miles. Write and solve an
    6·1 answer
  • Find the slope for the following ordered pair <br> (10, 8) and (-5,8).
    5·2 answers
  • What is the answer to the problem? 7 1/2 ÷ 3/4 I need this fast please help!! :)
    7·2 answers
  • Find missing size if side of right angled triangle
    5·1 answer
  • Olivia picked 256 strawberries from the orchards fields. she divided the strawberries evenly into 6 baskets. how many strawberri
    12·1 answer
  • Choose information given that will form a unique triangle a 11, 45, 35 b 10, 55, 85
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!