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
Aneli [31]
3 years ago
13

In a toy factory 200 wooden solid cylinder 7cm long and 35mm in diameter have to be painted. What is the total surface area in c

m^2 that needs to be painted?
Mathematics
1 answer:
Semmy [17]3 years ago
5 0
The surface area of a cylinder is:

A=2pr^2+2prh  and since r=d/2

A=2p(d^2/4+dh/2)

A=(p/2)(d^2+2dh)  and we need 200 of these cylinders...

A=(100p)(d^2+2dh), and using d and h, 3.5cm and 70cm we get:

A=(100p)(3.5^2+2*3.5*7)

A=(100p)(12.25+49)

A=6125p cm^2

A≈19242 cm^2 (to nearest cm^2)
You might be interested in
Ivan in inventory has a whole bunch of numbers just sitting around. He wants to build a “Multiples of 2” set in his free time. H
valkas [14]

Answer:

If they are divisible by 2

Step-by-step explanation:

:))

like ex.

2 4 6 8 10 12

8 0
3 years ago
Gretchen finished her first lap in the 200 m freestyle event in 28.78 seconds. She completed the second lap in 31.31 seconds. By
Ray Of Light [21]

Answer:

her time increased 2.53 seconds

Step-by-step explanation:

subtract 28.78 from 31.31 to get how much her time increased.

8 0
3 years ago
1) what is the answer to 5(3x-2y)+2(x+2y)-3(3x-2y)?
vichka [17]
So first we want to distribute. (#1)

So, using the distributive property, we can:

5 * 3x - 2y * 5 + 2x + 2 * 2y - 3 * 3x - 3 * 2y

or

15x - 10y + 2x + 4y - 9x - 6y

Now just combine like terms

8x -12y

So for #1 it should be a.

#2: 2x - 3 + 3x - 5

Combine Like Terms: 

2x + 3x - 3 - 5

5x - 8

So it should be b.
4 0
3 years ago
Find the missing side of each triangle
m_a_m_a [10]

The missing angle is 13.6, since we got the sides we can find the hypotenuse of 8 and 11 and that is 13.6 ||

Making the answer: 13.6

Here is my math c=a2+b2=8.2+11.2≈13.60147

3 0
2 years ago
What is the SMALLEST number that 4 and 10 goes into<br> I cant use my brain rn
Ostrovityanka [42]

Answer:

20

Step-by-step explanation:

multiples

4,8,12,16,20

10,20

7 0
2 years ago
Other questions:
  • The table represents a linear function. find the values of a,b, and c. Show your work.
    13·1 answer
  • Drag the values into the boxes to classify each number as rational or irrational.
    15·2 answers
  • Will mark brainlist if right
    13·1 answer
  • WILL MARK BRAINLIEST IF BOTH CORRECT!! PLEASE ANSWER!! 6TH GRADE MATH NYC??
    9·1 answer
  • Please help and show steps so i could figure out how to do it , will give branliest!
    12·1 answer
  • 2 What is the solution set of <br> |4x - 1|= 3?
    7·1 answer
  • Write 54 + 63 as the product of the<br> GCF of 54 and 63 and another sum.
    7·1 answer
  • renee collects baseball and football cards. the number of baseball cards is more than twice the number of football cards . all t
    9·1 answer
  • Which of the following transforms the graph of
    13·1 answer
  • What is the area of a hexagon inscribed in a circle with a diameter of 8
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!