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
Tju [1.3M]
3 years ago
10

How to do this question

Mathematics
1 answer:
blsea [12.9K]3 years ago
8 0
This is a 3 step problem. First you ignore the hole in the middle and find the volume anyways. Then you find the volume of the empty middle part. Then you can find the volume of the actual shape by subtracting them. 
area of a circle is= pi r^2
Volume with hole: 5*5*pi*8=200pi
Volume of hole= 1.5*1.5*pi*8= 18pi
Volume of doughnut = 200pi-18pi=182pi=571.769863u^3

r is the radius which is half of the diameter. 
pi is a big number but you can use 3.14
the formula for finding the volume is area of base times height. That's why i multiplied it by 8.]

I hope this helps
You might be interested in
Ned started the month with $137.06 in his bank account. Over the course of the month he got 2 paychecks. One for $286.77 and the
jonny [76]

Answer:

Step-by-step explanation:

-228.91

7 0
3 years ago
Write (y^2)^3 without exponents, and fill in the blank​
irinina [24]

Answer:

y*y*y*y*y*y

Step-by-step explanation:

(y^{2})^{3} = y^{6} = y*y*y*y*y*y

7 0
3 years ago
I know this easy but what is 8 times 8
Contact [7]
8 times 8 would be 64. :)
8 0
3 years ago
Read 2 more answers
Use the net to compute the surface area of the three-dimensional figure.
Grace [21]

9514 1404 393

Answer:

  382 square units

Step-by-step explanation:

The central four rectangles down the middle of the net are 9 units wide, and alternate between 8 and 7 units high. Then the area of those four rectangles is ...

  9(8+7+8+7) = 270 . . . square units

The rectangles making up the two left and right "wings" of the net are 8 units high and 7 units wide, so have a total area of ...

  2×(8)(7) = 112 . . . square units

Then the area of the figure computed from the net is ...

  270 +112 = 382 . . . square units

__

<em>Additional comment</em>

You can reject the first two answer choices immediately, because they are odd. Each face will have an area that is the product of integers, so will be an integer. There are two faces of each size, so <em>the total area of this figure must be an even number</em>.

You may recognize that the dimensions are 8, 8+1, 8-1. Then the area is roughly that of a cube with dimensions of 8: 6×8² = 384. If you use these values (8, 8+1, 8-1) in the area formula, you find the area is actually 384-2 = 382. That area formula is A = 2(LW +H(L+W)).

3 0
3 years ago
Please answer this thanks
olganol [36]

Answer:

It's C! 75%

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
Other questions:
  • Ginger's cat gave birth to a kitten that weighed 3 3/8 ounces when it was born. On the day Ginger sold the kitten to its new own
    11·2 answers
  • Help on number 1 ? :)
    10·2 answers
  • Which double angle or half angle identity would you use to verify the following: csc x sec x = 2 csc 2x
    15·2 answers
  • Please help with the answer
    5·1 answer
  • Mike saves $42 a week for 7 weeks. During his 8-day vacation, he plans to spend $8.25 each day for snacks. Which expression show
    9·1 answer
  • What is 5 7/10 - 5/18
    6·2 answers
  • There are two cube-shaped tanks. One of the tank has a 3 m side, while the other one has a side measuring half of the first one.
    5·1 answer
  • I need help with this problem I need to apply the distributive property then simplify by combining like terms
    6·1 answer
  • Pllssss hellpppppppppp plssss
    15·2 answers
  • Enteros 15+18 resultado
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!