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
lakkis [162]
3 years ago
14

What is the diameter of a human hair written in scientific notation?

Mathematics
1 answer:
Ymorist [56]3 years ago
5 0

diameter of human hair is around 0.0025cm

 in scientific notation it is: 2.5x10^-3

You might be interested in
Rewrite the expression with parentheses pls help
KATRIN_1 [288]
Um is it (2+4) ÷ (2+4)
7 0
2 years ago
Approximately 14 percent of the population of Arizona is 65 years or older. A random sample of five persons from this population
Andreas93 [3]

Answer:

A)0.8533

Step-by-step explanation:

For each person, there are only two possible outcomes. Either they are 65 or older, or they are not. The probability of a person being 65 or older is independent of any other person. So we use the binomial probability distribution 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.

14 percent of the population of Arizona is 65 years or older.

This means that p = 0.14

A random sample of five persons from this population is taken.

This means that n = 5

The probability that less than 2 of the 5 are 65 years or older is :

P(X < 2) = P(X = 0) + P(X = 1)

In which

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

P(X = 0) = C_{5,0}.(0.14)^{0}.(0.86)^{5} = 0.4704

P(X = 1) = C_{5,1}.(0.14)^{1}.(0.86)^{4} = 0.3829

P(X < 2) = P(X = 0) + P(X = 1) = 0.4704 + 0.3829 = 0.8533

So the correct answer is:

A)0.8533

3 0
3 years ago
Rewrite the quadratic function below in standard form y=3(x+2)(x-3)
babunello [35]
X=3(x^2-x_6)
3x^2-x-6
8 0
3 years ago
Read 2 more answers
Find the distance between the two points to the nearest tenth. (0,-5) and (-4,2) 5 5.3 5.2 5.6
zubka84 [21]
Sqr (x2 - x1)^2 + (y2 - y1)^2
Sqr (-4-0)^2 + (2+5)^2
Sqr (16) + 49 = sqr 65
I got around 8.
(I might did something wrong, idk)
7 0
3 years ago
Which expressions show how 8 • 54 can be rewritten using the distributive property? Choose all answers that are correct.
irga5000 [103]
Answer choice B is using the distributive property.
6 0
3 years ago
Other questions:
  • What is the value of the expression shown below?
    11·2 answers
  • Is number 3 right? And what is number 4??
    13·1 answer
  • ABCD is a rectangle with AC=20 and AB=2BC. What is the area of rectangle ABCD?
    15·2 answers
  • Use triangles to find the sum of the interior angle measures of the polygon. What's the answer?
    10·2 answers
  • Which method do you prefer to use: Trig Method or Special Right Triangles
    7·1 answer
  • HELP ^^^^ ignore what i picked it was an accident
    7·1 answer
  • I WILL GIVE OUT BRAINELIST Quadratic functions g(x) and h(x) are graphed on the same coordinate grid. The vertex of the graph of
    14·1 answer
  • Write 4 3/7 as a decimal.
    12·2 answers
  • 4. A donut shop bakes 4 dozen donuts every 18 minutes. How long did it take for the bakery to complete its
    7·2 answers
  • Express 3.847* 10^(3 )in scientific notation
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!