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
zzz [600]
3 years ago
15

What is 0.00277 scientific notation?

Mathematics
2 answers:
Harlamova29_29 [7]3 years ago
3 0
2.77 × 10 ^ ( -3 ) is the answer
stich3 [128]3 years ago
3 0
Yes it is a scientific notation
You might be interested in
Hi today im going to be giving a -lot of point so if u dont get points dont worry cuz im going to be doing 5 times.
oksian1 [2.3K]

Answer:

EEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEE

Thanks So MUCH!!!

Step-by-step explanation:

6 0
2 years ago
Read 2 more answers
Use the formula V = s³, where V is the volume and s is the edge length of the cube, to solve this problem. A cube-shaped contain
Nesterboy [21]
12167 feet squared.......
8 0
3 years ago
A particular concentration of a chemical found in polluted water has been found to be lethal to 20% of the fish that are exposed
torisob [31]

Answer:

a) P(X=14)=(20C14)(0.8)^{14} (1-0.8)^{20-14}=0.109

b) P(X\geq 10) = 1-P(X \leq 9) = 0.9994

c) P(X \leq 16)= 1-P(X>16) =1-P(X \geq 17)= 1- [P(X=17) +...+P(X=20)]=0.589

d) E(X)= np = 20 *0.8 = 16

Var(X) = np(1-p) = 20*0.8*(1-0.8) = 3.2

Step-by-step explanation:

Previous concepts

The binomial distribution is a "DISCRETE probability distribution that summarizes the probability that a value will take one of two independent values under a given set of parameters. The assumptions for the binomial distribution are that there is only one outcome for each trial, each trial has the same probability of success, and each trial is mutually exclusive, or independent of each other".

Let X the random variable of interest, on this case we now that:

X \sim Binom(n=20, p=1-0.2=0.8)

The probability mass function for the Binomial distribution is given as:

P(X)=(nCx)(p)^x (1-p)^{n-x}

Where (nCx) means combinatory and it's given by this formula:

nCx=\frac{n!}{(n-x)! x!}

Part a

For this case we want this probability:

P(X=14)

And using the mass function we have this:

P(X=14)=(20C14)(0.8)^{14} (1-0.8)^{20-14}=0.109

Part b

For this case we want this probability:

P(X \geq 10)

And we can find this using the complement rule:

P(X\geq 10) = 1-P(X

P(X=0)=(20C0)(0.8)^{0} (1-0.8)^{20-0}=1.05x10^{-14}

P(X=1)=(20C1)(0.8)^{1} (1-0.8)^{20-1}=8.39x10^{-13}

P(X=2)=(20C2)(0.8)^{2} (1-0.8)^{20-2}=3.19x10^{-11}

P(X=3)=(20C3)(0.8)^{3} (1-0.8)^{20-3}=7.65x10^{-10}

P(X=4)=(20C4)(0.8)^{4} (1-0.8)^{20-4}=1.30x10^{-8}

P(X=5)=(20C5)(0.8)^{5} (1-0.8)^{20-5}=1.66x10^{-7}

P(X=6)=(20C6)(0.8)^{6} (1-0.8)^{20-6}=1.66x10^{-6}

P(X=7)=(20C7)(0.8)^{7} (1-0.8)^{20-7}=1.33x10^{-5}

P(X=8)=(20C8)(0.8)^{8} (1-0.8)^{20-8}=8.65x10^{-5}

P(X=9)=(20C9)(0.8)^{9} (1-0.8)^{20-9}=0.00046

And if we replace we got:

P(X\geq 10) = 1-P(X \leq 9) = 0.9994

Part c

For this case we want this probability:

P(X \leq 16)

And we can use the complement rule like this:

P(X \leq 16)= 1-P(X>16) =1-P(X \geq 17)= 1- [P(X=17) +...+P(X=20)]

P(X=17)=(20C17)(0.8)^{17} (1-0.8)^{20-17}=0.205

P(X=18)=(20C18)(0.8)^{18} (1-0.8)^{20-18}=0.137

P(X=19)=(20C19)(0.8)^{19} (1-0.8)^{20-19}=0.0576

P(X=20)=(20C20)(0.8)^{20} (1-0.8)^{20-20}=0.0115

And if we replace we got:

P(X \leq 16)= 1-P(X>16) =1-P(X \geq 17)= 1- [P(X=17) +...+P(X=20)]=0.589

Part d

The expected value is given by:

E(X)= np = 20 *0.8 = 16

Var(X) = np(1-p) = 20*0.8*(1-0.8) = 3.2

3 0
3 years ago
Sort the objects according to their densities. Which will float? Which will sink?
Schach [20]

Answer:

Float in Water:

Wheat

Butter

Oak wood

Sink in Water:

Brick

Clay

Step-by-step explanation:

No idea honestly, but make sense also do not mind my user. Brainly was being annoying by ADs and keep putting them in my face.

4 0
3 years ago
What is the equation of the blue line?
vekshin1

9514 1404 393

Answer:

  y = 2

Step-by-step explanation:

A horizontal line has the equation ...

  y = constant

The constant can be found by counting grid squares or reading the label on the y-axis where the line crosses.

The equation of the blue line is y = 2.

3 0
2 years ago
Read 2 more answers
Other questions:
  • Which expression represents the area of the triangle drawn below (4x-3) (2x-1) (4x-2) (3x-3)?
    10·1 answer
  • What is the coefficient of x7 in the expansion of (1 + x)11?
    15·1 answer
  • How do i find this answer....
    11·1 answer
  • The number of bacteria in a sample after x days is represented using the equation b= 50,000(1.05)^-x. By what approximate percen
    10·2 answers
  • What is 3divided by 1000 divided by5
    5·1 answer
  • a bike store marks up the wholesale cost of all bikes by 30%. Calvin wants to buy a bike that has a price tag of $125. What was
    15·2 answers
  • Select the correct answer.
    9·2 answers
  • 4) A box has dimensions of 14 inches long, 1.4 feet wide,
    5·1 answer
  • Which equation has no solution? *
    13·1 answer
  • 3 1/3 divided by 1 7/8 in simplest form
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!