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
NNADVOKAT [17]
3 years ago
5

I need help with this one I know I posted this pic on science sorry please help

Mathematics
2 answers:
igor_vitrenko [27]3 years ago
5 0
Answer is the order of operations such as +-•%
Alex3 years ago
3 0
Answer=Order of operations

The order of operations (which we use PEMDAS to help us remember) tells you which operation to do first.
You might be interested in
"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
What the next step is
miv72 [106K]
Number 1 is correct.
7 0
3 years ago
Read 2 more answers
15% of $9 is $ this is a question on my math worksheet please respond quick and show the steps on how to do it please and thank
Vladimir79 [104]
9 times .15 = 1.35
15% of $9 is $1.35
5 0
3 years ago
Read 2 more answers
40 points! I just need this one, please help
vesna_86 [32]

Answer:

  • C. 3,75 cm

Step-by-step explanation:

<u>Ratio of corresponding sides:</u>

  • CD/BC = BC/AB
  • CD/6 = 6/9.6
  • CD = 6*6/9.6
  • CD = 3.75 cm

Correct choice is C

7 0
3 years ago
How can you use estimation to find
KATRIN_1 [288]
Well you can add to find out that 9 x 5 = 45 and 1/2 x 5 = 2 1/2 so the correct answer is 47 1/2 to estimate it just do 9 x 5 = 45 Hope this helps! :D
4 0
3 years ago
Read 2 more answers
Other questions:
  • The sophomore class sold a total of 700 adult and student tickets to the school play. Adult tickets sold for $4.50 each and stud
    13·2 answers
  • What is -1 = 5/8b + 3/8
    11·1 answer
  • A steel ball is traveling through water with a speed of x meters per second, where x is positive the drag force, F
    8·1 answer
  • A room has a length of 4 1/3 yards and with a 15 feet. The room is covered with carpet that cost $21 per square yard. How much m
    11·1 answer
  • What is -8<br><br> -16 A<br><br> -8 B<br><br> 8 C<br><br> 16 D
    8·1 answer
  • Nyla earns a monthly salary of $2,200 plus a 3.75% commission on the amount of his sales at a men's clothing store. How much did
    9·2 answers
  • Rational numbers are always sometimes never natural numbers​
    6·1 answer
  • Phillip wanted to leave a 15% tip. He thought to himself that 15% = 10% plus half of 10%. Which of the following equations will
    8·2 answers
  • What is meant by the notations AE, AE, and AE
    5·1 answer
  • Select all expressions that are equivalent to 5n-30
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!