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
tino4ka555 [31]
3 years ago
10

What sum is represented by the following number line?

Mathematics
1 answer:
Mama L [17]3 years ago
3 0

Answer:

Step-by-step explanation:

B

You might be interested in
Mark bought refreshments. Sandwiches were 2.50 each and bottles of water were $1.25 each. He spent $356.25 on a total of 180 ite
Over [174]
First you have to write the equation. in the scenario, use standard form.
Ax+By=C
plug the numbers in. A=2.50, B=1.25, and C is the total, 356.25. the 180 doesn't come in quite yet.
your equation is 2.50x+1.25y=356.25. now, since they only bought 180 items, you can't go past that.

I am sorry, but I am about to leave for school, and therefore do not have enough time to answer the last of your question. I hope the part I could answer has helped you.
7 0
3 years ago
If the mean height of college males was 70" with a standard deviation of 3", approximately what percentage of college males woul
ozzi
Multiply 3 & 70 and divide by the answer of 6'1 6'4 you multiply them then your answer
8 0
3 years ago
A telemarketer is successful at getting people to donate money for her organization in 55% of all calls she makes. She must get
Tems11 [23]
An interesting twist to a binomial distribution problem.

Given:
p=55%=0.55 for probability of success in solicitation
x=4=number of successful solicitations
n=number of calls to be made
P(x,n,p)>=89.9%=0.899  (from context, it is >= and not =, which is almost impossible)

From context of question, all calls are assumed independent, with constant probability of success, so binomial distribution is applicable.

The number of successes, x, is then given by
P(x)=C(n,x)p^x(1-p)^{n-x}where
p=probability of success
n=number of trials
x=number of successesC(n,x)=\frac{n!}{x!(n-x)!}

Here we need n such that
P(x,n,p)>=0.899
given
x>=4, p=0.55, which means we need to find

Method 1: if a cumulative binomial distribution table is available, we can look up n=9,10,11 and find
P(x>=4,9,0.55)=0.834
P(x>=4,10,0.55)=0.898
P(x>=4,11,0.55)=0.939
So she must make (at least) 11 calls to make sure the probability of meeting her quota is 89.9% or more.

Method 2: using technology.
Similar to method 1, we can look up the probabilities directly, for n=9,10,11
P(x>=4,9,0.55)=0.834178
P(x>=4,10,0.55)=0.8980051
P(x>=4,11,0.55)=0.9390368

Method 3: using simple calculator
Here we need to calculate the probabilities for each value of n=10,11 and sum the probabilities of FAILURE S=P(0,n,0.55)+P(1,n,0.55)+P(2,n,0.55)+P(3,n,0.55)
so that the probability of success is 1-S.
For n=10,
P(0,10,0.55)=0.000341
P(1,10,0.55)=0.004162
P(2,10,0.55)=0.022890
P(3,10,0.55)=0.074603
So that
S=0.000341+0.004162+0.022890+0.074603
=0.101995
and Probability of getting 4 successes (or more) 
=1-S
=0.898005, missing target by 0.1%

So she will have to make 11 phone calls, bring up the probability to 93.9%.  The work is similar to that of n=10.
8 0
3 years ago
What is this?!?!!? it makes no senss
12345 [234]

Answer:

if a varible is by itself with no key it would mean a 1 but this would most likely mean multiplication although there is no parenthesies my awnser would be 6!

Step-by-step explanation:

but that would be the same as the question.

5 0
3 years ago
Why should the number of classes in a frequency distribution be between 5 and​ 20?
Free_Kalibri [48]

Answer:

To allow for easy segregation, analysis, detecting patterns and understanding of the data

Step-by-step explanation:

Classes are, in simple terms, grouping of data based on certain unique characteristics.

Frequencies in classes are the amount of times that said characteristic occurs in an amount of event

The reasons the number of classes is set to between 5 and 20 is to allow for easy segregation, analysis, detecting patterns and understanding of the data

3 0
3 years ago
Other questions:
  • Whats the answer to this question and how did you do it?? thanks,,, (:
    9·2 answers
  • Solve for x. Use the completing the squares method. Round decimals to the nearest tenth. 2x2+16x=−18 (
    5·1 answer
  • A car rental is 40$ per day plus $0.30 per mile traveled write the equation as a function
    9·1 answer
  • A figure has a vertex at (-1,-3). If the figure has line symmetry about the y-axis, what are the coordinates of another vertex o
    7·1 answer
  • Jodi poured herself a cold soda that had an initial temperature of 45degreesF and immediately went outside to sunbathe where the
    5·1 answer
  • Does anyone know the answer 10*2/3*9 please?
    13·1 answer
  • If a = 6, b= 7.5 and c= -2, calculate:<br> a + b + c
    15·2 answers
  • a.When the numerator and the denominator have no common factor other than 1; he fraction is either a proper fraction or mixed nu
    6·1 answer
  • 50 POINTS IF YOU CAN ANSWER IT!
    11·1 answer
  • LOOKS EASY !! NO FILES/LINKS THX
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!