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
damaskus [11]
3 years ago
6

HURRY PLEASE!!!!!

Mathematics
1 answer:
RideAnS [48]3 years ago
7 0
First we need to find the radius of the cylindrical tree trunk if the circumference C=4 feet: C=2rπ, r=4/(2π)=2/π. Now we find the volume V: V=r^2π*h, where h=20 feet is the height. So we input the numbers: V=(2/π)^2*π*20=(4/π²)*π*20. π in the nominator and the denominator cancel out: V=(4/π)*40=80/π. The volume of the cylindrical tree trunk is V=80/π feet^3
You might be interested in
Enter the variable that is easiest to solve for in this system of equations. 6y=10x+5 , 6y=5x+7
djverab [1.8K]

Answer:

Step-by-step explanation:

fg

nhmnj

8 0
3 years ago
Read 2 more answers
Where is a major league ballpark in which the distance from home plate to the center-field fence and the height of the center fi
jonny [76]
Given:

A height of 2 feet above the ground and angle of elevation of 86 degrees. 

Assuming that the form of our problem is a right triangle, we can solve for the remaining angle:

180 - (90+86) = 4 degrees

The distance from the home plate to the centerfield is

2/sin 4 = x / sin 86

solve for x

x = 28.60 feet
  <span />
8 0
3 years ago
1. Latoya baked b cookies, her family ate 13 of them. Using b write an expression for the number of cookies that remained :)
fiasKO [112]

Answer:

b-13

Step-by-step explanation:

I'm pretty sure this is right? Unless I'm missing something, if I am I am terribly sorry.

5 0
2 years ago
Read 2 more answers
PLZ CHECK MY ANSWERS AND TELL ME THE RIGHT ANSWERS IF I GET THEM WORNG
Natalija [7]

Answer:

Step-by-step explanation: I Can Tell You The First One Is Correct And I Believe The Second Was Is Too.  

7 0
3 years ago
Some college graduates employed full-time work more than hours per week, and some work fewer than hours per week. We suspect tha
Alex_Xolod [135]

Answer:

a)Null hypothesis:\mu =40      

Alternative hypothesis:\mu \neq 40      

b) A Type of error I is reject the hypothesis that \mu is equal to 40 when is fact \mu is equal to 40c) We can commit a Type II Error, since by definition "A type II error is the non-rejection of a false null hypothesis and is known as "false negative" conclusion"Step-by-step explanation:Assuming this problem: "Some college graduates employed full-time work more than 40 hours per week, and some work fewer than 40 hours per week. We suspect that the mean number of hours worked per week by college graduates, [tex]\mu , is different from 40 hours and wish to do a statistical test. We select a random sample of college graduates employed full-time and find that the mean of the sample is 43 hours and that the standard deviation is 4 hours. Based on this information, answer the questions below"

Data given

\bar X=43 represent the sample mean

\mu population mean (variable of interest)

s=4 represent the sample standard deviation

n represent the sample size  

Part a: System of hypothesis

We need to conduct a hypothesis in order to determine if actual mean is different from 40 , the system of hypothesis would be:    

Null hypothesis:\mu =40      

Alternative hypothesis:\mu \neq 40      

Part b

In th context of this tes, what is a Type I error?

A Type of error I is reject the hypothesis that \mu is equal to 40 when is fact [tex]\mu is equal to 40

Part c

Suppose that we decide not to reject the null hypothesis. What sort of error might we be making.

We can commit a Type II Error, since by definition "A type II error is the non-rejection of a false null hypothesis and is known as "false negative" conclusion"

5 0
3 years ago
Read 2 more answers
Other questions:
  • ALOT OF POINTS, Please help it’s due it 2 minutes
    12·1 answer
  • The life expectancy of a circulating coin is 25 years. The life expectancy of a circulating dollar bill is only 1/20 as long. Fi
    12·1 answer
  • How does the value of the digit 8 in 1.8 compare to the value of the digit 8 in 486?
    15·1 answer
  • A t statistic was used to conduct a test of the null hypothesis H0: µ = 11 against the alternative Ha: µ ? 11, with a p-value eq
    15·1 answer
  • Jan bought a blazer for $39.90. The price of the blazer was $38. What sales-tax rate was she charged for this blazer?
    14·2 answers
  • Find all x so that x^5=-x^3. Imaginary numbers (like "i") are allowed.
    9·2 answers
  • Rewarding brainly for correct answer
    10·2 answers
  • May I please have help with my math ?! Thank you
    11·1 answer
  • Please please help help me please please help helps me please ASAP ASAP please ASAP thank you!!
    15·2 answers
  • Why is it important to be able to represent functions as tables, graphs, algebraically, and verbally?
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!