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joja [24]
3 years ago
15

What is 221,000,000,000,000,000,000 expressed in scientific notation? a.2.21 × 1021 b.2.21E20 c.2.21E21 d.2.21E-20 e.2.21 × 10-2

1 f.2.21 × 10-20 g.2.21 × 1020 h.2.21E-21
Mathematics
2 answers:
vodomira [7]3 years ago
8 0

Answer:

The Answer Is <em>B</em> and <em>G</em>

Step-by-step explanation:

I went and clicked all the answers and found out these two were the correct answer.

nekit [7.7K]3 years ago
4 0

Answer:

221,000,000,000,000,000,000 = 2.21 x 10^20

therefore, the answer is b

Step-by-step explanation:

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xxTIMURxx [149]

Answer:

A= 20.83 square units

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Step-by-step explanation:

7 0
3 years ago
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Estimate √97.5 / 1.96
evablogger [386]

Answer: 5


Step-by-step explanation:

 1. You have the following expression given in the problem above:

\frac{\sqrt{97.5}}{1.96}

2. You can estimate the result by rounding the numerator and the denominator.

3. As you can see, you can round up 97.5 to 100.

4. Then, you can round up 1.96 to 2.

5. Therefore, you have:

\frac{\sqrt{100}}{2}

\frac{10}{2}=5

6. Therefore, the result is 5.

3 0
3 years ago
How do I solve 372 = -3x - 6(8x + 6)? I already know that x = -8, but I need to know the process of how to get it.
ziro4ka [17]

The value of x is -8

Step-by-step explanation:

The steps of solving an equation of one variable

  1. Simplify the two sides of the equation
  2. Separate the variable in one side and the numerical term in the other side
  3. Divide the both sides by the coefficient of the variable

∵ 372 = -3x - 6(8x + 6)

- Simplify the R.H.S. of the equation by multiplying the bracket by 6

∵ 372 = -3x - [6(8x) + 6(6)]

- You must put the square bracket because the sign in-front of 6

  is (-) and the (-) changes the signs after it

∴ 372 = -3x - [48x + 36]

- Remember (-)(+) = (-), multiply the square bracket by (-)

∴ 372 = -3x - 48x - 36

- Add the like terms in the R.H.S.

∴ 372 = -51x - 36

- Add 36 to both sides to separate x in the R.H.S.

∴ 408 = -51x

- Divide both sides by -51 (coefficient of x)

∴ -8 = x

I hope these steps help you

The value of x is -8

Learn more:

You can learn more about the equations in brainly.com/question/11306893

#LearnwithBrainly

3 0
3 years ago
The length of a rectangle is 9 inches more than the width. The perimeter is 38 inches. Find the length and the width (in inches)
andrew11 [14]

Answer:12

Step-by-step explanation:

7 0
3 years ago
Evaluate the expression when z=7 3z+8
SSSSS [86.1K]

Answer:

Hi! The answer to your question is 29

Step-by-step explanation:

3(7)+8

3(7) = 21

21 + 8

= 29

☆*: .。.。.:*☆☆.*: .。..。.:*☆☆*: .。.。.:*☆☆.*: .。..。.:*☆

☁Brainliest is greatly appreciated!☁

<em>Hope this helps!!</em>

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3 0
2 years ago
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