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CaHeK987 [17]
2 years ago
15

The mean age of 5 people in a room is 40 years.

Mathematics
1 answer:
max2010maxim [7]2 years ago
7 0

Answer:

22years

Step-by-step explanation:

The sum of ages of people in the room is 40 * 5= 200

[ Remember mean = total ahead of people/ number of people]

Let the age of the 6th person be X

200+x. / 6 = 37

200 + x = 37 * 6 = 222

x = 222- 200 = 22

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express 121,200 in exponential (powers of 10) notation. express the earth sun distance in kilometers in powers of 10 notation.
Mashutka [201]

The exponential form of given number 121200 is 1.212 × 10^5

And the earth sun distance in kilometers in powers of 10 notation is 1.5 × 10^8

For given question,

We need to express 121,200 in exponential (powers of 10) notation.

To use scientific notation, pick a value between 1 and 10, then multiply it by 10ˣ.

The number between 1 and 10 in 121200 is 1.212 with 5 decimal points.

So, the exponential notation of given number would be,

121,200 = 1.212 × 10^5

Earth's average distance from the Sun is around 93 million miles (150 million kilometers). That's one AU.

So the number between 1 and 10 in 150,000,000 is 1.5, with 8 decimal points.

So, the distance between he Earth and the Sun is:

150,000,000 = 1.5 × 10⁸

Therefore, the exponential form of given number 121200 is 1.212 × 10^5

And the earth sun distance in kilometers in powers of 10 notation is 1.5 × 10^8

Learn more about the powers of 10 here:

brainly.com/question/13303295

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The function is f(x) is shown in this graph. Compare the slopes.
Goshia [24]

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Step-by-step explanation:

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2 years ago
Choose all the common denominators for 2/3 and 7/9.<br> 6<br> 9<br> 18<br> 27<br> 30
n200080 [17]

Answer:

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Step-by-step explanation:

2/3x2= 6/9, which makes it have a common denominator with 7/9.

7 0
3 years ago
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olga_2 [115]
For the first one you will do 9 divided by 3 to the power of 2 For the second one it will be 27 divided by 3to the power of 3 the last one will be 81 divided by 3 to the power of 4
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castortr0y [4]

Answer:

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Step-by-step explanation:

(x-9)(x+2)(x-2)=0

x-9=0

x+2=0

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x=9, x=-2, x=2

8 0
3 years ago
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