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3 years ago

What is the of A in a partial fraction decomposition below?

Mathematics

1 answer:

denis-greek [22]3 years ago

8 0

Answer:

Step-by-step explanation:

(8x + 28) / ((x − 1) (x + 2) (x + 3)) = A / (x − 1) + B / (x + 2) + C / (x + 3)

Multiply both sides by (x − 1) (x + 2) (x + 3).

8x + 28 = A (x + 2) (x + 3) + B (x − 1) (x + 3) + C (x − 1) (x + 2)

If x = 1:

8 + 28 = A (3) (4)

36 = 12A

A = 3

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What is the value of the expression shown 24-52

Ahat [919]

Answer:

-28

Step-by-step explanation:

It is negative so:

52-24=28

-28

8 0

3 years ago

Which of the following is an example of the identity property of 1?

Valentin [98]

Answer:

2 or 1

i mostly think its 2 but im not sure

Step-by-step explanation:

8 0

3 years ago

There are 120 children standing in a line, every third child gets a rubber, every fourth child gets a ruler and every fifth chil

nevsk [136]

Answer:

It would be the 60th child

Step-by-step explanation:

3,6,9,12,

4,8,12,16,

5,10,15,

60 is the first number that can be divided by 60/3=20 60/4=15 60/5=12

Hope this helps<3

6 0

2 years ago

Solve the equation.<br><br> −10x + 1 + 7x = 37

matrenka [14]

You combine like terms which are -10x and 7x and 1 and 37. Then it becomes -3x=36. x would equal to 36/-3, which is -12.

8 0

3 years ago

Read 2 more answers

12 pts? Harris and Annabelle are 200 feet apart, and they are standing on opposite sides of a tree. The angles of elevation from

Sergio [31]

If we are to connect the root of the tree to a person to the top of the tree, we form two right triangles. If we let x and and 200 - x be the distance of Harris and Annabelle from the tree, respectively and h be the height, we form the trigonometric functions,
tan 30° = h/x
tan 35° = h/(200 - x)
The values of h and x in the equations are 63.28 ft and 109.62 ft, respectively. Thus, the answer to this item is approximately 63.28 ft.

5 0

3 years ago