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
Klio2033 [76]
2 years ago
6

The height of a tree trunk is 20 meters and the base diameter is 0.5 meter.

Mathematics
1 answer:
Temka [501]2 years ago
5 0
Question a:

Mass = Density × Volume 
Density = Mass/Volume

Volume of the tree trunk (the shape of Cylinder) = Area of circular base × height
Volume = [πr²] × h
Volume = [π × 0.25²] × 20
Volume = 3.93 m³

Density = 380 kg/m³

Mass = Density × Volume
Mass = 380 × 3.93
Mass = 1493.4 kg

------------------------------------------------------------------------------------------------------------

Question b)

The growth ring = 4 millimeters = 4÷1000 = 0.004
New diameter = 0.5 + 0.004 = 0.5004
New height = 20 + 0.2 = 20.2

New volume = [πr²] × h
New volume = [π × 0.2502²] × 20.2
New volume = 3.97 m³



You might be interested in
Multiply (3x2-2x)(2x2+3x-1)
ELEN [110]

Answer:

(3·x^2 - 2·x)·(2·x^2 + 3·x - 1)

= 3·x^2·2·x^2 + 3·x^2·3·x - 3·x^2·1 - 2·x·2·x^2 - 2·x·3·x + 2·x·1

= 6·x^4 + 9·x^3 - 3·x^2 - 4·x^3 - 6·x^2 + 2·x

= 6·x^4 + 5·x^3 - 9·x^2 + 2·x

8 0
3 years ago
Given that f(x)=x^2+3x+6 and g(x)= x-3/2, solve for f(g(x)) when x=1
podryga [215]
If you would like to solve for f(g(x)) when x = 1, you can do this using the following steps:

<span>f(x) = x^2 - 3x + 6
g(x) = x - 3/2

f(g(x)) = f(</span>x - 3/2) = (x - 3/2)^2 - 3 * (x - 3/2) + 6
x = 1
f(g(1)) = f(1 - 3/2)  = f(-1/2) = (-1/2)^2 - 3 * (-1/2) + 6 = 1/4 + 3/2 + 6 = 1/4 + 6/4 + 24/4 = 31/4 = 7 3/4

The correct result would be 7 3/4. add me as a friend 
4 0
3 years ago
PLEASE HELP ILL GIVE BRAINLIST IF CORRECT.
Rudiy27

Answer: 1852.5

Step-by-step explanation:

1. divide 247 in. by 2

2. then multiply this number by 15

8 0
3 years ago
1. It refers to the size of a surface. What is it?
raketka [301]
Area of course also just a reminder Area is measured in square units such as square centimteres, square feet, square inches, etc
6 0
2 years ago
Can you solve these problem and show work for each one of these please.
pychu [463]
Consider this option.
Change the design according to the local requirements.

8 0
3 years ago
Other questions:
  • The average annual salary of the employees of a company in the Year 2005 was $70,000. It increased by the same factor each year
    14·2 answers
  • Deniz had a full gallon of milk. She poured out 4 cups of milk. There are 16 cups in 1 gallon. About what percent of the origina
    9·1 answer
  • Is 3x to the power of 2 a function ?
    9·2 answers
  • The graph below represents which system of inequalities?
    6·1 answer
  • Ethan, Farah, and Michael invested 427 000$ 671 000$ and 305000$ respectively and decided to share the ratio in their investment
    11·1 answer
  • What is the value of x?
    11·2 answers
  • Kathy is a scientist who is working in a remote part of Australia. She earns a salary of $86 840 plus a weekly allowance of $124
    14·1 answer
  • A
    15·1 answer
  • Graph the following features:<br><br> • Y - intercept = 5<br> • Slope = 1/3
    13·1 answer
  • A soup can, shaped like a cylinder, has a diameter of 3.5 inches and a height of 5 inches. Each serving of soup is 15 cubic inch
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!