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
son4ous [18]
2 years ago
14

In science,energy is measured in unit called joules. The sun radiates energy at the rate of 3.8× EXP26 joules per second. How mu

ch energy does the sun radiates in 30 minutes​
Mathematics
1 answer:
elena-s [515]2 years ago
6 0
En los 30 minutos tienes que agarr 26 por ciento a favor tu yo
You might be interested in
Lindsay spins a spinner once and then flips a fair coin twice. The spinner is
SashulF [63]

Answer:

The Probability Is That It Has A 50/50 Chance Of Landing On Either Side

Step-by-step explanation:

8 0
2 years ago
What value of w that makes the equation true 2/3(w+3) = 7
alexdok [17]
The answer is 7.5 or 15/2
3 0
3 years ago
When grading an exam, 90% of a professor's 50 students passed. If the professor randomly selected 10 exams, what is the probabil
Damm [24]

Using the binomial distribution, it is found that there is a:

a) 0.9298 = 92.98% probability that at least 8 of them passed.

b) 0.0001 = 0.01% probability that fewer than 5 passed.

For each student, there are only two possible outcomes, either they passed, or they did not pass. The probability of a student passing is independent of any other student, hence, the binomial distribution is used to solve this question.

<h3>What is the binomial probability distribution formula?</h3>

The formula is:

P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}

C_{n,x} = \frac{n!}{x!(n-x)!}

The parameters are:

  • x is the number of successes.
  • n is the number of trials.
  • p is the probability of a success on a single trial.

In this problem:

  • 90% of the students passed, hence p = 0.9.
  • The professor randomly selected 10 exams, hence n = 10.

Item a:

The probability is:

P(X \geq 8) = P(X = 8) + P(X = 9) + P(X = 10)

In which:

P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}

P(X = 8) = C_{10,8}.(0.9)^{8}.(0.1)^{2} = 0.1937

P(X = 9) = C_{10,9}.(0.9)^{9}.(0.1)^{1} = 0.3874

P(X = 10) = C_{10,10}.(0.9)^{10}.(0.1)^{0} = 0.3487

Then:

P(X \geq 8) = P(X = 8) + P(X = 9) + P(X = 10) = 0.1937 + 0.3874 + 0.3487 = 0.9298

0.9298 = 92.98% probability that at least 8 of them passed.

Item b:

The probability is:

P(X < 5) = P(X = 0) + P(X = 1) + P(X = 2) + P(X = 3) + P(X = 4)

Using the binomial formula, as in item a, to find each probability, then adding them, it is found that:

P(X < 5) = 0.0001

Hence:

0.0001 = 0.01% probability that fewer than 5 passed.

You can learn more about the the binomial distribution at brainly.com/question/24863377

3 0
2 years ago
24. In order to make the playoffa soccer team must get 20 points during the regular season. The team gets 2
stira [4]

Answer:10×12????=120 i think thats what your aski,

Step-by-step explanation:

7 0
2 years ago
Supposethat z is a normally distributed variable with variance 4. You collect a sample of size n for which you get a sample aver
Nikitich [7]

Answer:

The sample size is 4

Step-by-step explanation:

Null hypothesis: The mean is 2

Alternate hypothesis: The mean is less than 2

Mean = 3

sd = sqrt(variance) = sqrt(4) = 2

At 95% confidence level, t-value is 1.960

Assuming the lower bound of the mean is 1.04

Lower bound = mean - (t×sd/√n)

1.04 = 3 - (1.96×2/√n)

3.92/√n = 3 - 1.04

3.92/√n = 1.96

√n = 3.92/1.96

√n = 2

n = 2^2

n = 4

7 0
3 years ago
Other questions:
  • In a pizza eating contest, Darren ate of an 18-inch pizza in of a minute.
    10·1 answer
  • Let n be a positive integer and define [n] to be the set of the first n positive integers. That is, [n] = {1, 2, 3, . . . , n}.
    10·1 answer
  • Express 30 minutes per day as a ratio in simplest form.
    8·2 answers
  • -1+3-5+7-...+97-99 plz help me
    11·1 answer
  • G(x) = 3x -1. Find x such that g(x)= 2​​0​.
    5·1 answer
  • Help help math suckssss
    12·1 answer
  • Use the tables to complete the statements,
    14·1 answer
  • In a right triangle, if a = 8in and c = 14in, what is b? Round to three decimal places.
    15·1 answer
  • What is the y-intercept of each graph?<br> Explain.
    7·2 answers
  • Find the slope of the line that passes through the points (10, 9) and (2, 4).
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!