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
Thepotemich [5.8K]
2 years ago
11

A solid cone of height 12cm and radius 9cm is recast into a solid sphere. Calculate the surface area of the sphere​

Mathematics
2 answers:
Nana76 [90]2 years ago
7 0

Answer:

1017.8

Step-by-step explanation:

this is the formula 4πr2

hope this helps: )

Fofino [41]2 years ago
3 0

Answer:

Step-by-step explanation:

Volume of cone = π9²⋅12/3 = 324π cm³

volume of sphere = 4πr³/3 = 324π

r = ∛243

surface area of sphere = 4πr² ≈ 155.8π

You might be interested in
What is the equation of the line passing through the points (3,6) and (2,10)
andrezito [222]

Answer: y= - 4x+18

Step-by-step explanation:

Equation: y=mx+b

***remember: b is the y-intercept and m is the slope.

m=\frac{y2-y1}{x2-x1}

3= x1

2= x2

6= y1

10=y2

m=\frac{10-6}{2-3}= \frac{4}{1}= -4

m=-4

Now we have y=-4x+b , so let's find b.

You can use either (x,y) such as (3,6) or (2,10) point you want..the answer will be the same:

   (3,6). y=mx+b or 6=-4 × 3+b, or solving for b: b=6-(-4)(3). b=18.

   (2,10). y=mx+b or 10=-4 × 2+b, or solving for b: b=10-(-4)(2). b=18.

Equation of the line: y=-4x+18

3 0
3 years ago
Given the following two solids. Complete the following prompts using complete sentences. Write a hypothesis that compares the vo
Bess [88]

Now, there are many types of solids. Hypothesis can be stated as there is a significant discrepancy between solid one from the other sold. Moreover, if the results seems to support the hypothesis then it is somehow reliable and accurate.Thank you for your question. Please don't hesitate to ask in Brainly your queries. 
7 0
3 years ago
Read 2 more answers
Which of the following is equivalent to <br><br> 5t−2r=25
lidiya [134]

Answer:

Solving for t : t=5+2r/5

Solving for r : r=-25/2+5t/2

Step-by-step explanation: Move all of your terms that don't contain r to the right side and solve. Move all terms that don't contain t to the right side and solve.

Hope this helps you out! ☺ I just solved it and I don't have any choices to go off of and so I just solved it. Sorry if it's wrong. ☺

3 0
3 years ago
If you get this I’ll mark you brilliance
djyliett [7]

Answer:

1256cm^{3}

Step-by-step explanation:

Use the formula for the volume of a cylinder V=3.14(r^{2}) h so then you plug in the values to get 1256cm^{3}

6 0
2 years ago
2x+12 linear equations
aleksley [76]

Answer:

2x+12=180°

Step-by-step explanation:

because linear is equal to 180°

3 0
3 years ago
Other questions:
  • Geometry help!! Please!!
    5·1 answer
  • The sum of five times a number and 6 is 21. What is the number?
    15·2 answers
  • Which function is increasing?
    12·1 answer
  • WILL GIVE BRAINIEST ANSWER (if correct)
    12·2 answers
  • HELP ME ASAP! Will give BRAINLIEST! Please read the question THEN answer correctly! No guessing.
    10·1 answer
  • Find the missing angle of the triangle with angle measurements of 75º and 80º. What is the missing angle? Explain how you found
    9·1 answer
  • Combine and simplify these radicals.<br> 18.20
    14·1 answer
  • Evaluate n^2 +5 n=6
    7·2 answers
  • Outcome
    5·1 answer
  • What is the value of 780/60
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!