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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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The coordinates of point D are (7, 4) and the coordinates of point E are (1, -3).
mylen [45]

Answer:

  -6/7

Step-by-step explanation:

The slope of DE is ...

 (change in y)/(change in x) = (y2 -y1)/(x2 -x1) = (-3-4)/(1-7) = -7/-6 = 7/6

The slope of the line perpendicular to DE is the negative reciprocal of this:

  perpendicular slope = -1/slope = -1/(7/6) = -6/7

___

8 0
3 years ago
What is 7d+10=42 is that correct
uysha [10]

Answer:

No, it is not correct, d has no value so it is 17d. if d did have a value though then d would equal around 4.6

Step-by-step explanation:

4 0
3 years ago
Sadly, Sonic's health is at — 7 stars. Each magic potion that
olga55 [171]

Answer:

after dirking the potions he will have a new health of 3 stars

Step-by-step explanation:

5 0
3 years ago
Bonsoir ce que vous pouvez m aidez <br> je cherche des fraction égale a 4sur16
musickatia [10]

Answer:

1 sur 4 est équivalent.

Step-by-step explanation:

J'espère que cela aide !! Puis-je avoir la couronne?

4/16 et être réduit à 1/4!

6 0
3 years ago
this visual representation shows the sets of real numbers. classify the number −25. select all terms that are correct. natural w
vekshin1

-25 is an integer and a rational number.

<h3>What is number system?</h3>
  • A system of writing numbers is known as a number system.
  • It is the mathematical notation for consistently employing digits or other symbols to represent the numbers in a particular set.
  • It represents the arithmetic and algebraic structure of the numbers and gives each number a distinct representation.

Now,

  • Natural numbers are positive integers with a range of 1 to infinity; nevertheless, they do not include zero. -25 wouldn't be a natural number because it is a negative number.
  • A group of numbers known as a whole number consists of all positive integers and 0. This wouldn't be a whole number because -25 isn't a positive number.
  • Any real number that cannot be represented as the quotient of two integers is said to be irrational. Square roots of irrational numbers are also frequently seen. -25, however, is not a square root.
  • Any number that can be expressed as a ratio, or a fraction, of two integers, is referred to be a rational number. Fractions, decimals, negative decimals, and other rational numbers are very prevalent. Since -25 can be represented as a ratio of two numbers. it is a rational number.
  • A whole number that can be either positive, negative, or zero is known as an integer. As -25 is negative and a whole number( when positive), it is an integer.

Hence, -25 is an integer and a rational number.

To learn more about number system, refer to the link: brainly.com/question/13162939

#SPJ4

6 0
1 year ago
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