How to do the problem

Mathematics

1 answer:

gavmur [86]3 years ago

5 0

Distribute the outside number (the 2 fractions in this case) to the numbers in the parenthesis. Multiply them and then solve for the variable. To solve for variable just add or subtract the constant (add if negative subtract if positive). Then divide each side with the number paired with the variable.

Just ask if you want me to edit answers in

You might be interested in

Hey can you please help me posted picture of question

SpyIntel [72]

We are to find the Probability the someone buys a book that is paperback and fiction.

Let P(F) represents the event that the book is fiction and P(P) represents the event that the book is paperback. We are to find P(F∩P)

P(F∩P) = P(F) x P(P)

From the tree diagram we can see that:

P(F) = 0.45
P(P) = 0.65

Using the values, we get:

P(F∩P) = 0.45 x 0.65 = 0.2925

So, the Probability the someone buys a book that is paperback and fiction is 0.2925.

So, option B gives the correct answer

3 0

3 years ago

Solve for x<br><br> x^2-3x+2=0

cricket20 [7]

Answer:

x=1,2

Step-by-step explanation:

x^2-3x+2=0

(x-1)(x-2)

x-1=0

x-2=0

x=1,2

6 0

3 years ago

Help on number eight

garri49 [273]

Its length would be 9 ft so 9 x 8 is 72.

7 0

3 years ago

Read 2 more answers

"the life length x (in years) of a dvd player" is exponentially distributed with mean 5 years. what is the probability that a mo

loris [4]

The exponential distribution is:
$\lambda e^{- \lambda x}$
where $\lambda = \frac{1}{mean}=\frac{1}{5}$

The probability we want is how likely will a dvd player last more than 8 years, given it has already lasted 5 years
To find this, you use conditional probability.
$P(A|B) = \frac{P(A and B)}{P(B)}$
where A is P(x>8) and B is P(x>5)
To find these probabilities, integrate over the distribution:
$P(x \ \textgreater \ N) = \int_N^{\infty} \frac{1}{5} e^{-x/5} dx = e^{-N/5}$

Sub into conditional probability formula:

$P(x \ \textgreater \ 8 | x\ \textgreater \ 5) = \frac{P(x\ \textgreater \ 8)}{P(x\ \textgreater \ 5)} = \frac{e^{-8/5}}{e^{-5/5}} = e^{-3/5} = 0.549$

Final Answer: Given a dvd player is more than 5 years old, the probability that it will last another 3 more years is about 54.9%

3 0

3 years ago

G(1) = 4<br> g(n) = g(n-1)-(-3)<br> g(3)

Licemer1 [7]

Answer:

Step-by-step explanation:

8 0

2 years ago