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Snezhnost [94]
3 years ago
15

Helppppp meeeee plssss

Mathematics
1 answer:
worty [1.4K]3 years ago
6 0

Answer:

10 times the total mass of ants

Step-by-step explanation:

Solution: 1

We are told the total number of ants in the world is about 10,000 trillion or 10,000×1012=104×1012=1016 ants. In addition, the average mass of a single ant is 4×10−3 grams. Thus, the approximate total mass of all ants in the world is

(4×10−3g)(1016)=4×10−3+16g=4×1013g.

The mass for humans is given in kilograms while the mass for ants is in grams. We convert the unit of mass for a human to grams as follows,

(65kg)(103g1kg)=(65×103)g=(6.5×101)(103)g=6.5×101+3g=6.5×104g.

Since there are 6.84 billion humans on earth, the total mass of all humans on earth can be approximated as

(6.5×104g)(6.84 billion)=(6.5×104g)(6.84×109)=(6.5×6.84)(104×109)g=44.46×104+9g=(4.446×101)×1013g=4.446×1014g.

Thus, the total mass of all humans in the world is greater than the total mass of all ants in the world. In fact, the calculations above show the total mass of all humans in the world is about 10 times the total mass of all ants.

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Write 24 as a product of prime factors.
Mekhanik [1.2K]

Answer:

2 x 2 x 3 x 2

Step-by-step explanation:

Let's slowly break down 24 into shorter pieces.

24 = 4 x 6

=> 2 x 2 x 3 x 2

Since all of the numbers are prime numbers, the following product is the product of prime factors.

Hoped this helped.

6 0
3 years ago
If r(x)=4x^2-3x+7, Find r(2a^2)
Nata [24]

Answer:

r(2a²) = 16a⁴ - 6a² + 7

General Formulas and Concepts:

<u>Pre-Algebra</u>

Order of Operations: BPEMDAS

  1. Brackets
  2. Parenthesis
  3. Exponents
  4. Multiplication
  5. Division
  6. Addition
  7. Subtraction
  • Left to Right<u> </u>

<u>Algebra I</u>

  • Functions
  • Function Notation
  • Exponential Rule [Powering]: \displaystyle (b^m)^n = b^{m \cdot n}

Step-by-step explanation:

<u>Step 1: Define</u>

<em>Identify</em>

r(x) = 4x² - 3x + 7

<u>Step 2: Evaluate</u>

  1. Substitute in <em>x</em> [Function r(x)]:                                                                            r(2a²) = 4(2a²)² - 3(2a²) + 7
  2. Exponential Rule [Powering]:                                                                           r(2a²) = 4(2²a²⁽²⁾) - 3(2a²) + 7
  3. [Exponents] Multiply:                                                                                        r(2a²) = 4(2²a⁴) - 3(2a²) + 7
  4. Exponents:                                                                                                        r(2a²) = 4(4a⁴) - 3(2a²) + 7
  5. Multiply:                                                                                                             r(2a²) = 16a⁴ - 6a² + 7
7 0
3 years ago
The ratio of female learners to male learners in a class is 3:2. If there are 30 female learners in the class, work out:
saul85 [17]

Answer:

20 male learners
Total number of learners is 50

Step-by-step explanation:

(See attachment below)

3 0
3 years ago
Please help it's four am and I really hate math
tangare [24]

Answer:

A

Step-by-step explanation:

number books = n

2xn / 15

6 0
3 years ago
Coaches take people to a festival.
Drupady [299]

Answer:

17 coaches

Step-by-step explanation:

820 divided by 50 is 16.4 but you can't have part of a coach so you round up it 17

6 0
3 years ago
Read 2 more answers
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