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WARRIOR [948]
3 years ago
10

Pls help me how do I write 20,484,163 in expanded form I'm only in 2nd grade

Mathematics
2 answers:
mestny [16]3 years ago
7 0

Answer:

twenty thousand four hundred and eight four one hundred and sixty four

julsineya [31]3 years ago
6 0

Answer:

20,000,000 + 400,000 + 80,000 + 4,000 + 100 + 60 + 3

Step-by-step explanation:

You would have to add all the numbers together that makes 20,484,163 based on the place value. Expanded form for 20,484,163 is 20,000,000 + 400,000 + 80,000 + 4,000 + 100 + 60 + 3

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Solve (x + 5)^(3/2)= (x - 1)^3
IRINA_888 [86]

Answer:

  x = 4

Step-by-step explanation:

For an equation of this sort, my first step is to rewrite it so the solutions are the x-intercepts of the graph:

  (x +5)^(3/2) -(x +1)^3 = 0

The graph is attached. The one real solution is x=4.

__

The solution method for something like this is necessarily ad hoc. Here, it appears that progress can be made by raising both sides of the equation to the 2/3 power:

  ((x +5)^(3/2))^(2/3) = ((x -1)^3)^(2/3)

  x +5 = (x -1)^2

Now, you have an ordinary quadratic that can be solved using any of the usual methods.

  x^2 -2x +1 = x +5 . . . . swap sides, expand the square

  x^2 -3x -4 = 0 . . . . . . put in standard form

  (x -4)(x +1) = 0 . . . . . . factor

The solutions to this are ...

  x = 4, x = -1 . . . . . . . values of x that make the factors zero

__

To see if either of these solutions is extraneous, we can check them:

  (4 +5)^(3/2) = (4 -1)^3 . . . . . substitute 4 for x

  9^(3/2) = 3^3 . . . . . . . . . true

  (-1 +5)^(3/2) = (-1 -1)^3 . . . . . substitute -1 for x

  4^(3/2) = (-2)^3

  8 = -8 . . . . . . . . . . . false; x = -1 is extraneous

The solution is x = 4.

_____

<em>Additional comment</em>

You can eliminate the x=-1 "solution" by considering the domains of the left- and right-side expressions. The 3/2 power is equivalent to the square root of the cube. That will generally only be defined for non-negative values (x ≥ -5). The cube on the right will only be positive for x > 1, so the practical domain of this equation is x ≥ 1.

5 0
3 years ago
Shoot your shot! When Nick shoots a basketball, he either sinks the shot or misses. For each shot Nick sinks, he is given 5 poin
Misha Larkins [42]

Answer:

Nick sank 8 shots

Step-by-step explanation:

* <em>Lets explain how to solve the problem</em>

- Assume that Nick sinks x shots and misses y shots

- Nick attempts a total of 28 shots

- That means he sinks and misses 28 shots

∴ x + y = 28 ⇒ (1)

- His father give him 5 points (+5) for every sank shot and takes away

 2 points (-2) for every missed shot

- That means his score calculated by adding (<u><em>the number of sank shots</em></u>

<em>   </em><u><em>multiplied by 5</em></u>) and (<u><em>the number of missed shots multiplied by (-2)</em></u>)

- Nick ends up with zero points

∴ 5x + (-2)y = 0

- Remember: (+)(-) = (-)

∴ 5x - 2y = 0 ⇒ (2)

* <em>Now we can solve the two equations by elimination method to find</em>

<em>  the number of sank shots</em>

- Multiply equation (1) by 2 to eliminate y

∴ 2x + 2y = 56 ⇒ (3)

- Add equations (2) and (3)

∴ 7x = 56

- Divide both sides by 7

∴ x = 8

∵ x represents the number of sank shots

∴ Nick sank 8 shots

8 0
3 years ago
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pashok25 [27]

Answer: Cause school

Step-by-step explanation:

7 0
3 years ago
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sveta [45]
Your answer would be 3.7m

hope this helped :)
4 0
3 years ago
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Use the correct order of operations to solve the problem below.
adoni [48]

Answer:

D

Step-by-step explanation:

parenthesis

exponents

multiply or divide from left to right

add or subtract from left to right

14 - 8 + 6 - 5

6 + 6 - 5

12 - 5

7

5 0
3 years ago
Read 2 more answers
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