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
netineya [11]
2 years ago
6

I need this answered please

Mathematics
1 answer:
TiliK225 [7]2 years ago
4 0
The answers are

1: False
2: True
3: True
4: False
You might be interested in
How do you solve the fraction 2 1/2 - 6
Slav-nsk [51]
You could easily change the 2 1/2 to a 2.5 and do 2.5-6=-3.5
8 0
3 years ago
Our hearts beat approximately 70 times per minute. Express in scientific notation how many times the heart beats over a lifetime
earnstyle [38]

Answer:

2.69 x 10^{9}

Step-by-step explanation:

We are given the heart's speed - 70 bpm

We count the number of minutes in 73 years :

  • 1 year = 365 days
  • 1 day = 24 hours
  • 1 hour = 60 minutes
  • 73 x 365 x 24 x 60 = 38,368,800 minutes

We multiply the heart's bpm with 73 years worth of minutes

38,368,800 x 70 = 2,685,816,000

Write the number in scientific notation = 2.68581 x 10^{9} ≈ 2.69 x 10^{9}

7 0
3 years ago
If the greatest integer function is called the floor function because it rounds any number down to the nearest integer, what wou
Phantasy [73]
Ceiling Function is the least integer that is greater than or equal to x.
5 0
3 years ago
Read 2 more answers
Draw a number line and mark all described points. 3x<8
Leya [2.2K]

3x8 is 24 hopefully this is helpful

7 0
3 years ago
Read 2 more answers
The Census Bureau's Current Population Survey shows that 28% of individuals, ages 25 and older, have completed four years of col
gizmo_the_mogwai [7]

Answer:

19.35% probability that five will have completed four years of college

Step-by-step explanation:

For each individual chosen, there are only two possible outcomes. Either they have completed fourr years of college, or they have not. The probability of an adult completing four years of college is independent of any other adult. So the binomial probability distribution is used to solve this question.

Binomial probability distribution

The binomial probability is the probability of exactly x successes on n repeated trials, and X can only have two outcomes.

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

In which C_{n,x} is the number of different combinations of x objects from a set of n elements, given by the following formula.

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

And p is the probability of X happening.

28% of individuals

This means that p = 0.25

For a sample of 15 individuals, ages 25 and older, what is the probability that five will have completed four years of college?

This is P(X = 5) when n = 15. So

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

P(X = 5) = C_{15,5}.(0.28)^{5}.(0.72)^{10} = 0.1935

19.35% probability that five will have completed four years of college

5 0
3 years ago
Other questions:
  • Toucans and​ blue-and-yellow macaws are both tropical birds. The length of the toucan in the picture to the right is about two t
    9·2 answers
  • A scale drawing of rectangle is made by using a scale factor of 5/8. The original in the scale drawing are shown below.
    15·2 answers
  • A toy falls from a window 70 feet above the ground. How long does it take the toy to hit the​ ground?
    6·1 answer
  • The admission fee at the county fair is $2 for children and $4 for adults. on a certain day, 2000 people enter the fair and $500
    14·1 answer
  • Can someone tell me what’s the answer to this question pls and thank you I will give brainliest
    10·1 answer
  • The product of the difference of x and 3 and 4
    6·1 answer
  • Solve the following system by the substitution method<br><br> 2x+y=4<br> y+2x
    14·1 answer
  • 1/6 minus 1/10 simplifiy
    8·2 answers
  • Which of the following could be the value of a in the relation below so that the relation is also a function
    6·1 answer
  • Is the set of ordered pairs above a function? {(3,4), (1,5), (-9,0), (3,-2)}
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!