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lyudmila [28]
3 years ago
13

If a cell has a volume of 3nm, what are the surface area and the volume of the cell?

Mathematics
1 answer:
harkovskaia [24]3 years ago
7 0
A cell has a radius: r = 3 nmThe surface area of a cell:A = 4 r² π = 4 · 3² π = 4 · 9 π = 36 π nm²The volume of a cell:V = 4/3 r³ π = 4/3 · 3³ π = 4 · 9 π = 36 π nm³Answer: The surface area is 36 π nm² and the volume is 36 π nm³.
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RSB [31]

Answer:

-a(a+4)/(16 - a²)

Step-by-step explanation:

            a/(a - 4)                  Multiply by (a + 4)/(a + 4)

= a(a + 4)/[(a – 4)(a + 4)]     Multiply the denominatorator terms

= a(a + 4)/(a² - 16)               Multiply by -1/(-1)

= -a(a+4)/(-a² + 16)              Reorder terms in denominator

= -a(a+4)/(16 - a²)

5 0
3 years ago
What is the m∠ACB in the circle shown below?
GuDViN [60]

Question:

What is the m∠ACB in the circle shown below?

Answer:

45

Step-by-step explanation:

So we know it is <u><em>less than a right angle</em></u> and it is not a obtuse angle it is less than 90 degrees. 45 is less, 90 is equal(<em>not what we are looking for</em>) , 120, is greater, and 180 is greater which leaves us to our answer 45.

4 0
3 years ago
Please help I need this please help please just me help
Nikitich [7]

Answer:

It would take 4 minutes.

Step-by-step explanation:

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3 0
2 years ago
You are given the hyperbolic relation modeled by xy=−3
jasenka [17]

▪▪▪▪▪▪▪▪▪▪▪▪▪  {\huge\mathfrak{Answer}}▪▪▪▪▪▪▪▪▪▪▪▪▪▪

Let's solve :

a.) The equation will be :

  • xy =  - 3

  • y =  \dfrac{ - 3}{x}

b.) the table will be like this :

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point (1 , -3)

  • for x = 3 , y = -1

point (3, -1)

  • for x = -1 , y = 3

point (-1 , 3)

  • for x = -3 , y = 1

point (-3 , 1)

c.) graph the equation as shown in attachment !

8 0
3 years ago
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kobusy [5.1K]

Answer:

5.1 centimeters (5.08 not rounded)

Step-by-step explanation:

1 inch=2.54 centimeters

2.54*2=5.08

7 0
3 years ago
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