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
Anika [276]
3 years ago
15

If 8600 firefighters work for a city and 31 out of 40 firefighters who were asked if they enjoy their jobs

Mathematics
1 answer:
sergeinik [125]3 years ago
4 0

I am slightly confused. What exactly is the question?

You might be interested in
Suppose the number of hits a webpage receives follows a Poisson distribution. The average number of hits per minute is 2.4. What
REY [17]

Answer:

The probability that the page will get at least one hit during any given minute is 0.9093.

Step-by-step explanation:

Let <em>X</em> = number of hits a web page receives per minute.

The random variable <em>X</em> follows a Poisson distribution with parameter,

<em>λ</em> = 2.4.

The probability function of a Poisson distribution is:

P(X=x)=\frac{e^{-\lambda}\lambda^{x}}{x!};\ x=0,1,2,...

Compute the probability that the page will get at least one hit during any given minute as follows:

P (X ≥ 1) = 1 - P (X < 1)

             = 1 - P (X = 0)

             =1-\frac{e^{-2.4}(2.4)^{0}}{0!}\\=1-\frac{0.09072\times1}{1} \\=1-0.09072\\=0.90928\\\approx0.9093

Thus, the probability that the page will get at least one hit during any given minute is 0.9093.

6 0
3 years ago
Eight toy makers each carved 25 blocks and 15 cars how many toys did they crave in all
Stella [2.4K]

Answer:

320

Step-by-step explanation:

25 + 15 = 40 toys each

Toy makers x number of toys each = total toys carved

8 x 40 = 320 totals carved in all

6 0
3 years ago
Read 2 more answers
Work out and simplify where possible <br><br> a) 2/5+1/3<br><br> b) 5/9-1/2
Vlad1618 [11]
The answer is
a) 11/15
b) 1/18
5 0
3 years ago
What is 2 X (6+ 2 + 8) -4
VladimirAG [237]

Answer:

The correct answer is 32x - 4

Step-by-step explanation:

1) Simplify 6 + 2 to 8.

2x(8 + 8) - 4

2) Simplify 8 + 8 to 16.

2x \times 16 - 4

3) Simplify 2x × 16 to 32x.

32x - 4

<u>Therefor</u><u>,</u><u> </u><u>the</u><u> </u><u>answer</u><u> </u><u>is</u><u> </u><u>32x</u><u> </u><u>-</u><u> </u><u>4</u>.

4 0
3 years ago
A house has increased in value by 34% since it was purchased the current value is 469,000 what is the value when it was purchase
Rashid [163]

Answer:

$ 710606.606

Step-by-step explanation:

Let original price be x

x - 34% of x = 469000

=> X - 34x/100 = 469000

=> 100x -34x/100 = 469000

=> 66x/100 = 469000

=> 66x = 46900000

=> X = 46900000/66

=> X = 710606.606

8 0
3 years ago
Other questions:
  • Which of the following represents a function?
    10·2 answers
  • Can anyone help me with this please.
    8·1 answer
  • Write a decimal that is 1 tenth of 3.0
    6·1 answer
  • A park has 22 elm trees. Elm leaf beetles have been attacking the trees. After removing several of the diseased trees, there are
    5·1 answer
  • 3/8 = r + 2/3<br> what is R
    8·2 answers
  • Anyone happen to know this? Thanks .
    14·1 answer
  • Chandler is on a hike in the woods. He has an altimeter with him, and Chandler uses it to measure his height above sea level at
    10·1 answer
  • Mattt's parents pay him $5.50 for each half hour he babysits his sister,plus a $2 tip. If Matt made $18.50, for how long did he
    14·1 answer
  • if you increase the number by 4 and double the sum the result you will get will be the same as four times the number decrease by
    12·1 answer
  • Someone help me please answer only if you know
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!