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
sergey [27]
3 years ago
11

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

Mathematics
1 answer:
denis-greek [22]3 years ago
8 0

Answer:

3

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

You might be interested in
What is the value of the expression below if y=5
Neko [114]

Answer:

25

Step-by-step explanation:

8*5=40

40+6=46

46-10=36

36-9=25

5 0
3 years ago
How many ways can Hannah give three of her eight T-shirts to her younger sister?
prisoha [69]
If Hannah gives her younger sister 3 shirts, it does not matter what order she hands them to her. No matter the order, it will still be the same group of 3 shirt. Since order is not important this problem can be solved using a combination.

Specifically we are asked to find 8C3 (sometimes called "8 choose 3"). This is a fraction. In the numerator we start with 8 and count down 3 numbers. In the denominator we start with 3 and count all the way down to 1. Thus we obtain,

\frac{(8)(7)(6)}{(3)(2)(1)}=(8)(7)=56
7 0
3 years ago
At silver gym membership is $25 per month ,and personal training session are $30 each. At fit factor , membership is $65 per mon
frosja888 [35]
If you are solving for x than the answer would be x=4.
8 0
3 years ago
Read 2 more answers
Two sides of a triangle are 8cm and 12cm. Which of the following CANNOT be the measure of the third side,
blondinia [14]

Answer:

4 cannot be the measure of the third side. This is because of the Triangle Inequality Theorem, which states that the sum of two sides of a triangle must be greater than the third side (A+B>C, A+C>B, B+C>A) In this example, if side C were 4, side C (4) plus side A (8) would be 12. Since side B is 12, and 12 cannot be greater than 12, 4 would not work.

Answer=8

Step-by-step explanation:

7 0
4 years ago
Read 2 more answers
Brianna bought snacks for her team's practice. She bought a bag of oranges for $2.72 and a 20-pack of juice bottles. The total c
posledela

Answer:

each bottle was $2.12 :P

Step-by-step explanation:

➼start by making an equation to find the price of the juice pack, in this case x would be the price of the juice pack because its unknown, the juice pack price(x) added to the price of the oranges(2.72) and equal the total(45.12), the before tax part is not needed info

2.72 + x = 45.12

➼now our aim to get x alone to find out its worth so we will have to do the opposite and subtract 2.72 from everything, since its positive

2.72-2.72=0 crosses out

45.12-2.72=42.4

➼which gets us x = 42.4 so one 20 pack is 42.40 dollars but we arent done yet, to find out the price of EACH bottle we must divide 42.4 by 20!

42.4/20=2.12

➼so to sum it up, each bottle is $2.12 :)

4 0
3 years ago
Read 2 more answers
Other questions:
  • A book sold 37,900 copies in its first month of release. Suppose this represents
    11·1 answer
  • Help help !!!!!!!!!!!!!!!!!!!!!!!
    15·1 answer
  • Solve for k .
    15·1 answer
  • There is a picture once you have join tutor ​
    14·2 answers
  • Find the height of the rectangular prism given the volume, length, and width.
    11·1 answer
  • 2. Analyze this inequality.-4x &lt; 12 <br> a) x &gt; -3 b) x &lt; -3 <br> c) x ≤ -3 d) -x &lt; 3
    11·1 answer
  • Use the markings in the image to answer the following questions (drawing not to scale):
    6·1 answer
  • Dominic is buying supplies for his poetry class. He likes to write his poems in black ink, then decorate the pages with colorful
    5·1 answer
  • How do i cancel this app? -i was just charged $24 and do not have a subscription - what gives Brainly? How do I get my refund? L
    6·1 answer
  • Sierra has enough fencing to make three chicken coops shown each has the same perimeter which has the greatest area?
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!