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
viva [34]
2 years ago
9

1/a^2-3a+2 + 1/a^2-5a+6 + 2/a^2-8a+15

Mathematics
1 answer:
Inessa [10]2 years ago
4 0

Answer:

\frac{4+16a^3+23a^3}{a^2}

Step-by-step explanation:

Given

1/a^2-3a+2 + 1/a^2-5a+6 + 2/a^2-8a+15

Required

Simplify

1/a^2-3a+2 + 1/a^2-5a+6 + 2/a^2-8a+15

Collect Like Terms

1/a^2 + 1/a^2 + 2/a^2-3a-5a-8a+2+6+15

1/a^2 + 1/a^2 + 2/a^2-16a+23

Add Fractions:

\frac{1+1+2}{a^2} + 16a + 23

\frac{4}{a^2} + 16a + 23

This can be further expressed as:

\frac{4+16a^3+23a^3}{a^2}

You might be interested in
Find the total cost. (How much you pay.<br> Original price of a car: $21,589<br> Tax: 9%
liraira [26]

Answer:

23532.01

Step-by-step explanation:

21,589 x 1.09 = 23532.01

We add a 1 to 0.09 to make there fewer steps when doing it manually.

3 0
2 years ago
Read 2 more answers
-0.5<br> 0<br> 1<br> -2<br> 1.5<br> Where is Point D on the number line?<br> ?
Over [174]

Answer:

Its -1.9 for where point D is

4 0
2 years ago
Read 2 more answers
Geometric of <br> 1/3, 2/9, 4/27, 8/81, 16/243
Nataliya [291]
A The answer is
n
=
2
n
−
1
3
n
5 0
3 years ago
Solve the system of equations.
Ksenya-84 [330]

Answer:

1) {y,x}={-3,-23}

2) {x,y}={7,-9/2}

Step-by-step explanation:

Required:

  • Solve systems of equations

1) y - x = 20, 2x - 15y = -1

Equations Simplified or Rearranged :

[1]    y - x = 20

  [2]    -15y + 2x = -1

Graphic Representation of the Equations :

x + y = 20        2x - 15y = -1  

Solve by Substitution :

// Solve equation [1] for the variable  y

 [1]    y = x + 20

// Plug this in for variable  y  in equation [2]

  [2]    -15•(x +20) + 2x = -1

  [2]     - 13x = 299

// Solve equation [2] for the variable  x

[2]    13x = - 299

  [2]    x = - 23

// By now we know this much :

  y = x+20

   x = -23

// Use the  x  value to solve for  y

   y = (-23)+20 = -3

Solution :

{y,x} = {-3,-23}

2) 25-x=-4y,3x-2y=30

Equations Simplified or Rearranged :

  [1]    -x + 4y = -25

  [2]    3x - 2y = 30

Graphic Representation of the Equations :

   4y - x = -25        -2y + 3x = 30  

Solve by Substitution :

// Solve equation [1] for the variable  x

  [1]    x = 4y + 25

// Plug this in for variable  x  in equation [2]

 [2]    3•(4y+25) - 2y = 30

  [2]    10y = -45

// Solve equation [2] for the variable  y

  [2]    10y = - 45

  [2]    y = - 9/2

// By now we know this much :

  x = 4y+25

   y = -9/2

// Use the  y  value to solve for  x

  x = 4(-9/2)+25 = 7

Solution :

{x,y} = {7,-9/2}

3 0
2 years ago
What are the coefficients in the expression -8y^ + 12x + 5y + 7
schepotkina [342]

Answer:

-8  12  5  

Step-by-step explanation:

they are the numbers attached to the variables

8 0
3 years ago
Other questions:
  • A solid machine part is to be manufactured as shown in the figure. The part is made by cutting a small cone off the top of a lar
    12·1 answer
  • Problem The sum of 5 consecutive even numbers is 310 What is the third number in this sequence?
    6·2 answers
  • How much dose 23k of gold cost today???
    13·2 answers
  • If f(x) = (3x+7)^2 ,then f(1) =
    8·2 answers
  • If 6000 people voted in the election how many were from 18 to 29 years old
    14·1 answer
  • -3/5x=42 help pleeeeeeeeeeeeeaaaaaaaaaaaaaaaaaaasssssssssssssssseeeeeeeeeeeee
    12·2 answers
  • Anyone wants to meet with me and help me with my math homework
    13·1 answer
  • When three squares are joined at their vertices to form a right triangle, the combined area of the two smaller squares is the sa
    14·2 answers
  • A scale drawing of a kitchen is shown below. The scale is 1:20.
    9·1 answer
  • Relation or function
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!