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
iren [92.7K]
2 years ago
7

Find the surface area of a 7.4 cm long iron rod and 3.1 m radius

Mathematics
1 answer:
Debora [2.8K]2 years ago
3 0

Answer:

144.2 cm

Step-by-step explanation:

Length of the iron rod is 7.4cm

Radius is 3.1m

Therefore the surface area can be calculated as follows

= 2πrl

= 2×3.142×3.1×7.4

= 144.2 I'm

Hence the surface area is 144.2cm

You might be interested in
Please help asap !!!
denpristay [2]

Answer:

B. x=3/7   y=22/7

C. because it is not precise

D. you need to replace these values in the above equation

<u>Check Understanding</u>

to find the intersection point:

y=y

-3x-2=x-10

solve, x=2

B. by graphing the 2 lines (equations)

Step-by-step explanation:

3 0
2 years ago
The volume of the fish tank needs to be tripled. What scale factor should be applied to the dimensions to produce a fish tank wi
joja [24]

Answer:

assuming it's a perfect world and that the fish lives in a 1 cubic meter fish tank 1*1.4422 will increase the volume my a factor of 3

4 0
2 years ago
Can someone help with 9-12 please ?
ad-work [718]

Answer:

9-12 is -3

Step-by-step explanation:

6 0
2 years ago
Defined by two lines or rays diverging from a common point.
kotykmax [81]
B. your answer is an angle
8 0
3 years ago
Read 2 more answers
PLEASE HELP ME ASAP <br><br> Determine the slope of each line:
Sladkaya [172]

Answer:

a=(2/5), b = (-2,6)

Step-by-step explanation:

well slope formula is rise/run. So for the first one you start at the point  rise 2 run 5 and you reach the endpoint. That is how you know you got the correct slope.  (2/5)

For the second one you start at the first point and you cannot go up because it is a negative slope you run 6 till you hit the other point go down 2. Since you go down 2 that would make it -2.  (-2,6)

5 0
3 years ago
Other questions:
  • Brooke took out a 4-year loan for $1825 at a computer store to be paid back with monthly payments at a 12.5% APR. If the loan of
    9·2 answers
  • the average walking speed of a person is 4.8 kilometersper hour. estimate the number of kilometers could you walk in 3 hours?
    10·1 answer
  • PLEASE HELP!!! Match each equation with its slope
    8·1 answer
  • PLEASE HELP ITS TIMED<br><br> which is the graph of a logarithmic function?
    10·2 answers
  • Kate sets a goal to walk 3 miles every day for a year. How many miles more or less than 1,000 miles will she walk in the year? A
    7·1 answer
  • What's the answer to that equation above
    5·1 answer
  • 30 1 5 miles in 2 3 of an hour. What is the average speed, in miles per hour, of the car?
    6·1 answer
  • 18........................
    5·2 answers
  • elena wants to paint her jewelry box blue.the jewelry box is in the shape of a cube and it has an edge length of 4 in. how much
    9·1 answer
  • Y varies directly with x. Given that y=6 when x=30, determine y when x=8
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!