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
Anna [14]
3 years ago
11

Help me with my math please

Mathematics
2 answers:
Olin [163]3 years ago
8 0
Every thing he said
monitta3 years ago
3 0

Answer:

Volume of a cylinder = πr²h

Given

V=81π

r=3

find h

Making h the subject

h= V/πr² = 81π/π(3)²

h= 81/9

h= 9cm

You might be interested in
Jonathan has a collection of 400 marbles. Blue makes up 17% of his collection,how many blue marbles does Jonathan have?
Yuki888 [10]
So percent means parts out of 100 so 17%=17/100
400 marbles
17% of 400=blue
'of' can be translated to multiply
17%=17/100
17/100 ties 400=6800/100=68
he has 68 blue marbles
8 0
4 years ago
X + 3x + x<br> Simplify
lana [24]
Answer:
5x

Answer Explained:
All the x’s add up together to make 5x
3 0
4 years ago
Read 2 more answers
What is 1 raised to the fourth power?
nexus9112 [7]

Answer:

1

Step-by-step explanation:

1 * 1 * 1 * 1 = 1

6 0
3 years ago
Mark has a summer job power washing. He charges $15.50 for the first half hour and $5.00 for each hour after the first half hour
anzhelika [568]
Im pretty sure it would be 15.50+(5.00*x) hope i helped have a nice day
((:

8 0
3 years ago
Laurie was scuba diving. Each time she dove 5 feet deeper, she would stop and clear her ears. Each time that this totaled 20 fee
8090 [49]
You could compute it based on the given information as (-20)(3). The next best choice is ...
  A: (4)(-5)(3)

_____
There is nothing in the problem statement that specfically says after 4 stops she checks her instruments. You have to figure that from -20/-5. That is why I would skip that step and go directly to (-20)(3).
7 0
3 years ago
Read 2 more answers
Other questions:
  • Rob is saveing to buy a new mp3 player for every 14 dollars he earns babysitting ,he saves 5 dollars on saturday rob earned 84 d
    12·1 answer
  • The regular price of a DVD is $18, then it is put on sale for $14. Which integer represents the change in the price? A) -14 B) -
    12·2 answers
  • How to solve (4s+5t)(4s-5t)
    13·1 answer
  • If the circumference of a circle is 12.56 ft, what is the length of the diameter? use 3.14 for Ï.
    10·1 answer
  • “Find the missing variable for this proportion.”
    7·1 answer
  • is 3 months enough time to complete 300 assignments? my school is online and requires you to complete a certain amount of assign
    12·2 answers
  • Decrease 10kg by 10%
    11·2 answers
  • PLZ HELP WILL GIVE BRAINILST IF CORECCT
    5·2 answers
  • Help ASAP <br> What are the correct notations for the following number line? (Select all that Apply)
    9·1 answer
  • Vegetarian burgers are sold in two different sizes.
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!