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
marysya [2.9K]
3 years ago
15

Please help me with this i need this grade

Mathematics
1 answer:
Wittaler [7]3 years ago
5 0

Answer: B/The second answer

Step-by-step explanation:

You might be interested in
!!I NEED AN ANSWER QUICKLY!!
Katyanochek1 [597]

Answer:

Step-by-step explanation:

Ans:A.

6×5÷2×11=165

7 0
3 years ago
Read 2 more answers
An airline finds that 5% of the persons making reservations on a certain flight will not show up for the flight. If the airline
vivado [14]

Answer:

The answer to the question is;

The probability that a seat will be available for every person holding a reservation and planning to fly is 0.63307.

Step-by-step explanation:

Let the sample size =n = 100

The success probability = 5 % = 0.05

Number of tickets sold = 105 tickets

In the case where there the airline has found that 5 % will not show up, then every passenger should have  a seat, we have  

A Binomial distribution is appropriate where there is a chance for a certain number of successful outcomes from a number of independent trails

However n·p and n·q must be ≥ 5 for there to be a normal approximation of a Binomial distribution thus

n·p = 105×0.05 =  5.25 ≥ 5

and n·q = n(1 - p) = 105 (1 - 0.05) = 99.75 ≥ 5

As the requirements are met, we can proceed with the approximation of the Binomial distribution by the normal distribution

 z = \frac{x-np}{\sqrt{np(1-p)}  } = \frac{4.5 - 105*0.05}{\sqrt{105*0.05(1-0.05)} } =  - 0.3358

We therefore have P(x ≥ 5) = P( x > 4.5) = P(z > -0.34) = 1 - P(z < -0.34) = 1 -0.36693 = 0.63307

Another way to solve the question is as follows

p = 0.95 q = 0.05

μ = np = 0.95*105 = 99.75, σ = \sqrt{npq} = 2.233

P (x≤100) = P(z = P(z<0.34) = 0.63307.

6 0
3 years ago
If Lana deposits $500 into a savings account that gains simple interest at
Oksana_A [137]

Answer:

10 years

Step-by-step explanation:

First, converting R percent to r a decimal

r = R/100 = 2%/100 = 0.02 per year,

then, solving our equation

t = 100 / ( 500 × 0.02 ) = 10

t = 10 years

The time required to

accumulate simple interest of $ 100.00

from a principal of $ 500.00

at an interest rate of 2% per year

is 10 years.

3 0
3 years ago
60% of what number is 72?
Hitman42 [59]
60%=0.6

0.6*x=72

0.6x=72

x= \frac{72}{0.6}

x=120

72 is 60% of 120
7 0
3 years ago
Read 2 more answers
If M and m represents the number of sexagesimal and centesimal minute of any angle respectively, prove that M/27=m/50.​
riadik2000 [5.3K]

Answer:

if ma and m id black life matters if balck

7 0
3 years ago
Other questions:
  • Is an arbitrary number is able to represent all numbers while a randomly selected number represents a specific number. True or F
    13·1 answer
  • What is 12 divided by 2/3<br><br><br><br> What is 2/3 divided by 12
    13·1 answer
  • An airline asked its agents to assign convenience ratings on a scale of 1-7 to 114 flights leaving one of its hub cities. The hi
    5·2 answers
  • Need help with this
    12·1 answer
  • Expression for 10 divide into fifths from 20 divided in half
    9·1 answer
  • PLEASE ILL GIVE BRAINLIEST!!
    9·2 answers
  • HELPPPP PLEASE!!!!!!!!!!!!!!!!!!!
    10·2 answers
  • Change the following into mixed fraction 13/5​
    5·2 answers
  • Will someone help me please please please please :D
    5·2 answers
  • If 3 girls can send 30 text messages in 30 minutes how many texts can 6 girls send in 60 minutes
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!