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
Ivanshal [37]
3 years ago
10

For an outdoor concert by the city​ orchestra, concert organizers estimate that 17,000 people will attend if it is not raining.

If it is​ raining, concert organizers estimate that 4,000 people will attend. On the day of the​ concert, meteorologists predict a 70​% chance of rain. Determine the expected number of people who will attend this concert.
Mathematics
1 answer:
atroni [7]3 years ago
8 0

Answer:

Expected number of people in concert = 7900 people

Step-by-step explanation:

We have given,

In an concert,

if it's not raining , number of people will attend concert = 17000 people

If it's raining , then number of people will attend concert = 4000 people

Since, probability of raining = 70% = 0.7

Then probability of not raining = 30% = 0.3

So,

Expected number of people in concert = 0.3 * 17000 + 0.7 * 4000

Expected number of people in concert = 5100 + 2800

Expected number of people in concert = 7900 people

You might be interested in
Find the LCM (Least Common Factor) of 12 and 27 using prime factorizations​
Aneli [31]
The LCM (least common factor) of 12 and 27 is the number: 3
5 0
3 years ago
How do you solve this?
DiKsa [7]

Triangles ABC and LBM are similar. We know this because AL and LB have the same length, so that AB is twice as long as either AL or LB. The same goes for MC and BM, and BC. The angle B is the same for both tirangles ABC and LBM, so the side-angle-side postulate tells us the triangles are similar, and in particular that triangle ABC is twice as large as LBM.

All this to say that LM must be half as long as AC, so LM has length (B) 14 cm.

3 0
3 years ago
someone please help, i don’t understand this and i’m stuck. this is my last homework i need to do for today. if you can help tha
Ad libitum [116K]

Answer:

0.38 and 0.7 maybe it's the answer

Step-by-step explanation:

power of 10 in above questions are 2 and 3 respectively

5 0
2 years ago
What is the GCF and LCM of -21 and 80? Please Help! Explanation Please! :) Will give brainliest! ASAP!
Lisa [10]

Answer:

GCF= 1

LCM= 1680

Step-by-step explanation:

GCF= Find the prime factorization of 21, 21 = 3 x 7

Find the prime factorization of 80, 80 = 2 x 2 x 2 x 2 x 5

Then multiply the prime factors both numbers have in common

LCM= multiply the two numbers together and ignore all negative signs

5 0
3 years ago
What is the domain of this
Kaylis [27]

Answer:

\boxed{\sf B. \ All \ real \ numbers}

Step-by-step explanation:

The domain is all possible values for x.

f(x)=(\frac{1}{4} )^x

There are no restrictions on x.

The domain is all real numbers.

3 0
3 years ago
Read 2 more answers
Other questions:
  • How do you divide 25kg in a ratio of 2:3:5
    15·1 answer
  • The diameter of a small gear is 16cm. This is 2.5cm more than 1/4 of the diameter of a larger gear. What is the diameter of a la
    13·1 answer
  • Jermy has 3/5 as many as saved text messages as Ria.Jeremy has 24 saved text messages.How mamy saved text messages do they have
    8·1 answer
  • Find the next three terms of each sequence
    12·1 answer
  • Which inequality is true?
    7·2 answers
  • ⸸ ⸸ ⸸ you're valued ⸸ ⸸ ⸸​
    15·2 answers
  • PLEASE HELP ME FAST I NEED HELP PLEASE
    12·1 answer
  • Plz plz plz, HELP!!!! I will give u brainlylist
    8·1 answer
  • Nevaeh's car used 11 gallons to travel 352 miles. At what rate does the car use gas, in
    6·1 answer
  • Rewarding brainly and if you dont look for a unanswered question i posted or lmk if you want me to post one
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!