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
eimsori [14]
2 years ago
12

Can someone please help me with this!!!

Mathematics
1 answer:
pychu [463]2 years ago
3 0
It undo the 4 and the half
You might be interested in
Find the isosceles triangle side lengths
garik1379 [7]
You haven't included a diagram, however, if it's an isosceles triangle 2 of its sides will be the same and 1 will be different
7 0
3 years ago
Read 2 more answers
According to a survey, high school girls average 100 text messages daily (The Boston Globe, April 21, 2010). Assume the populati
Ghella [55]

Answer:

Step-by-step explanation:

Hello!

The variable of interest is:

X: number of daily text messages a high school girl sends.

This variable has a population standard deviation of 20 text messages.

A sample of 50 high school girls is taken.

The is no information about the variable distribution, but since the sample is large enough, n ≥ 30, you can apply the Central Limit Theorem and approximate the distribution of the sample mean to normal:

X[bar]≈N(μ;δ²/n)

This way you can use an approximation of the standard normal to calculate the asked probabilities of the sample mean of daily text messages of high school girls:

Z=(X[bar]-μ)/(δ/√n)≈ N(0;1)

a.

P(X[bar]<95) = P(Z<(95-100)/(20/√50))= P(Z<-1.77)= 0.03836

b.

P(95≤X[bar]≤105)= P(X[bar]≤105)-P(X[bar]≤95)

P(Z≤(105-100)/(20/√50))-P(Z≤(95-100)/(20/√50))= P(Z≤1.77)-P(Z≤-1.77)= 0.96164-0.03836= 0.92328

I hope you have a SUPER day!

3 0
2 years ago
Write the prime factorization of these numbers 18
Fofino [41]

18 = 2·9 = 2·3²

answer: 2·3²

3 0
2 years ago
Triangle ABC is similar to triangle CDE. Both are right triangles. Which statements about the two triangles must be true? Choose
Eddi Din [679]
The question ask to choose among the choices that states the truth about the triangle ABC and triangle CDE which is they are similar. The statement that tells the truth is letter C. Triangle ABC is congruent to triangle CDW and also D. Side AC is congruent it side CE. I hope this will help 
5 0
3 years ago
What is the relationship between 20,000 and 200,000
Inessa05 [86]
200,000 is ten times 20,000
4 0
3 years ago
Read 2 more answers
Other questions:
  • Please help with all 4 for 12 points it’s really annoying so I need some help
    10·1 answer
  • The difference between the two numbers is 4. The quotient of the two numbers is 2. What are the two numbers?
    9·2 answers
  • Sin theta = 24/25, cos theta &gt; 0, Find cos(2theta)
    10·2 answers
  • LLO
    6·1 answer
  • A virus consists of ​
    6·1 answer
  • Gina Chuez has considered starting her own custom greeting card business. With an initial start up cost of $1500, she figures it
    14·1 answer
  • Ten less than a number is three more than six times the number. Let n represent the number and translate each phase or sentence.
    13·1 answer
  • Combine and simplify the following radical expression. (2^3 square root 12)(3^3 square root 2)​
    15·2 answers
  • Help pleaseee I really need this done​
    12·1 answer
  • Jacob earned $370 walking dogs over the summer. He put 30% of what he earned into his savings account.
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!