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
Mama L [17]
3 years ago
15

Hurry please! answer for brainly.

Mathematics
1 answer:
vodka [1.7K]3 years ago
5 0

Answer:

Is there answer choices?

Step-by-step explanation:

Not very clear, could be any number of things. If there are words to choose from i can help you.

You might be interested in
6 millones restado 300¿
Brut [27]

Step-by-step explanation:

6,000,000-300=5,999,700

4 0
2 years ago
Read 2 more answers
Find the missing value 3/8 equals y over 24 ​
oee [108]

Answer:

Step-by-step explanation:

7 0
3 years ago
A right circular cylinder is inscribed in a sphere with diameter 4cm as shown. If the cylinder is open at both ends, find the la
SOVA2 [1]

Answer:

8\pi\text{ square cm}

Step-by-step explanation:

Since, we know that,

The surface area of a cylinder having both ends in both sides,

S=2\pi rh

Where,

r = radius,

h = height,

Given,

Diameter of the sphere = 4 cm,

So, by using Pythagoras theorem,

4^2 = (2r)^2 + h^2   ( see in the below diagram ),

16 = 4r^2 + h^2

16 - 4r^2 = h^2

\implies h=\sqrt{16-4r^2}

Thus, the surface area of the cylinder,

S=2\pi r(\sqrt{16-4r^2})

Differentiating with respect to r,

\frac{dS}{dr}=2\pi(r\times \frac{1}{2\sqrt{16-4r^2}}\times -8r + \sqrt{16-4r^2})

=2\pi(\frac{-4r^2+16-4r^2}{\sqrt{16-4r^2}})

=2\pi(\frac{-8r^2+16}{\sqrt{16-4r^2}})

Again differentiating with respect to r,

\frac{d^2S}{dt^2}=2\pi(\frac{\sqrt{16-4r^2}\times -16r + (-8r^2+16)\times \frac{1}{2\sqrt{16-4r^2}}\times -8r}{16-4r^2})

For maximum or minimum,

\frac{dS}{dt}=0

2\pi(\frac{-8r^2+16}{\sqrt{16-4r^2}})=0

-8r^2 + 16 = 0

8r^2 = 16

r^2 = 2

\implies r = \sqrt{2}

Since, for r = √2,

\frac{d^2S}{dt^2}=negative

Hence, the surface area is maximum if r = √2,

And, maximum surface area,

S = 2\pi (\sqrt{2})(\sqrt{16-8})

=2\pi (\sqrt{2})(\sqrt{8})

=2\pi \sqrt{16}

=8\pi\text{ square cm}

4 0
3 years ago
Two or more equations that have the same solution set called ________ equations
masya89 [10]
Equivalent system, equivalent systema of equations
7 0
3 years ago
Read 2 more answers
brad converted 5/11 to a decimal, and his result was repeating decimal. does this mean that the value is rational or irrational?
Alina [70]

Answer: It means the value is rational

Step-by-step explanation:

Repeating decimals can be converted to fractions and rational numbers are numbers that can be expressed as a fraction  but irrational numbers cannot be expressed as a fraction and neither does it terminate or repeat.

4 0
3 years ago
Other questions:
  • If e and d are midpoints of triangle abc find cb
    9·1 answer
  • in a sixth grade music Class ,1/5 of the class wants to play the drums .which decimal is equivalent to 1/5
    12·2 answers
  • A gardener is planting two types of trees: Type A is 5 feet tall and grows at a rate of 19 inches per year. Type B is 7 feet tal
    13·1 answer
  • Mrs Jenkins picked some tomatoes from her garden. She used 5/9 of the tomatoes to make pasta sauce. Then she used 3/4 of the rem
    14·1 answer
  • How many times can you round 72,586
    14·2 answers
  • On pet day 18 children brought a pet to school ⅔ of the pets were dogs 1\9 of the pets were cats how many dogs were there how ma
    6·1 answer
  • Solve for the x using elimination <br> 3x-2y=13x−2y=1 <br> 2x+2y=42x+2y=4
    7·1 answer
  • It takes billy 1/4 of an hour to bike 3/5 of a mile. What is Billy's pace in miles per hour?
    8·1 answer
  • Bro 100 points if u halp c========3
    14·2 answers
  • Jill jogs 3/4 of a mile in 1/10 of an hour at this rate how fast does she run one mile.
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!