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
kherson [118]
3 years ago
6

What is this simplified? Please help

Mathematics
1 answer:
Naya [18.7K]3 years ago
6 0

Answer:

The end result is -1/(x + 1)

Step-by-step explanation:

In order to find the answer to this, we first need to factor the denominator. Since it is a quadratic, we try to find number that multiply to the last term (8) and add to the middle term (9). In this case, the numbers 8 and 1 would work. This allows us to use those numbers in parenthesis along with x as a fully factored form.

x^2 + 9x + 8 = (x + 1)(x + 8)

Now that we have this factored we can take the original equation and factor a -1 out of the top.

(-1)(x + 8)/(x + 1)(x + 8)

Since there is an (x + 8) on the top and bottom, we can cancel those.

-1/(x + 1)

You might be interested in
NEED NOW!!
Leokris [45]
The answer is B, 50 miles!
5 0
3 years ago
In an assembly-line production of industrial robots, gearbox assemblies can be installed in one minute each if holes have been p
Illusion [34]

Answer:

The right answer is:

(a) 0.1456

(b) 18.125, 69.1202, 8.3139

Step-by-step explanation:

Given:

N = 24

n = 5

r = 7

The improperly drilled gearboxes "X".

then,

⇒ P(X) = \frac{\binom{7}{x} \binom {17}{5-x}}{\binom{24}{5}}

(a)

P (all gearboxes fit properly) = P(x=0)

                                               = \frac{\binom{7}{0} \binom{17}{5}}{\binom{24}{5}}

                                               = 0.1456

(b)

According to the question,

X = 91+5

Mean will be:

⇒ \mu = E(x)

       =E(91+5)

       =9E(1)+5

       =9.\frac{nr}{N}+5

       =9.\frac{5.7}{24} +5

       =18.125

Variance will be:

⇒ \sigma^2=Var(X)

         =V(9Y+5)

         =81.V(Y)

         =81.n.\frac{r}{N}.\frac{N-r}{N}.\frac{N-n}{N-1}

         =81.5.\frac{7}{24}.\frac{24-7}{24}.\frac{24-5}{24-1}

         =69.1202

Standard deviation will be:

⇒ \sigma = \sqrt{69.1202}

       =8.3139      

8 0
3 years ago
The points in the table lie on a line. Find the slope of the line.
telo118 [61]

Answer:

4/5

Step-by-step explanation:

6 - 2 = 4

7 - 2 = 5

3 0
3 years ago
Progress:
ipn [44]

Answer:

24 graciass bendiciones para ti

3 0
3 years ago
tammy has a rectangular poster . the poster is 1.6 meters long and 1.2 meters wide . what area of the poster in square centimete
MatroZZZ [7]
Area of a rectangle = length * width
A = 1.6 *1.2 = 1.92 m²
8 0
3 years ago
Other questions:
  • 17<br> If x-2 is a factor of x- bx + b, where b is a<br> constant, what is the value of b ?
    7·1 answer
  • What is the area of this polygon?
    13·2 answers
  • Suppose the population of rats double every 4 days. If a house began with 4 rats on day 1, how many rats will there be after 4 m
    10·1 answer
  • Express the area of the entire rectangle.
    13·2 answers
  • What is the root of 12 ?
    8·1 answer
  • A corporation must appoint a​ president, chief executive officer​ (CEO), chief operating officer​ (COO), and chief financial off
    13·1 answer
  • braylon deposits $242.50 in a new savings account. he decides to purchase a new Bluetooth speaker for his room and has to withdr
    11·1 answer
  • Can tell me if it's correct? If it's wrong, can you tell me the correct answer and how to solve it?
    7·2 answers
  • Which of the following statements about the image below is true?
    10·1 answer
  • Can yall please help me it isn't college work it is 6th grade math
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!