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Kisachek [45]
3 years ago
10

Write an explanation of how to change a number in decimal notation to scientific notation.

Mathematics
1 answer:
nekit [7.7K]3 years ago
8 0

Answer:

Move the decimal place to the left. Determine the exponent (number of times you moved the decimaal place). Plug it into (N x 10^a)

Step-by-step explanation:

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If 19 out of 110 people say volleyball is their favorite sport, how many people could be expected to choose volleyball out of 33
Gemiola [76]
Set up a ratio.

x= unknown portion out of 330

19/110= x/330
cross multiply

110x= 19 * 330

110x= 6270
divide both sides by 110

x= 57


ANSWER: She could expect 57 out of 330 to choose volleyball

Hope this helps! :)
6 0
4 years ago
Factor each expression 8 16 =
dalvyx [7]
Since they are just next to each other ill take it multiplication and that would be 128 if its not let me know and ill correct it 
8 0
4 years ago
Line XY is perpendicular to line CD at D. Which conclusion can be drawn?
guapka [62]
I have attached the choices given for this question

Answer:
measure angle XDC = 90 degrees

Explanation:
The term "perpendicular" implies that the angle formed between the two lines is 90 degrees.
These two lines do not have to be equal in length, they just intersect forming a 90-degree angle.

Comparing the explanation with the given choices, we would find that the only correct choice is:
measure angle XDC = 90 degrees

Hope this helps :)

8 0
4 years ago
A person places $7320 in an investment account earning an annual rate of 8.2%,
klasskru [66]

Answer:

The amount of money after 12 years is $19581.99 to the nearest cents

Step-by-step explanation:

The formula of the compound continuously interest is V = Pe^{rt} , where

  • V is the value of the account in t years
  • P is the principal initially invested
  • e is the base of a natural logarithm
  • r is the rate of interest in decimal

∵ A person places $7320 in an investment account

∴ P = 7320

∵ The account earning an annual rate of 8.2%, compounded continuously

∴ r = 8.2% ⇒ divide it by 100 to change it to decimal

∴ r = 8.2 ÷ 100 = 0.082

∵ The time is 12 years

∴ t = 12

→ Substitute these values in the formula above to find V

∵ V = 7320e^{0.082(12)}

∴ V = 19581.99121 dollars

→ Round it to the nearest cents ⇒ 2 d.p

∴ V = 19581.99 dollars

∴ The amount of money after 12 years is $19581.99 to the nearest cents.

8 0
3 years ago
The space shuttle travels at about 28,000 km per hour. Using that information, estimate how many hours it will take the shuttle
Gekata [30.6K]

Answer:

t = 42857.14 h

Step-by-step explanation:

Given that,

The speed of space shuttle, v = 28000 km/h

We know that, the distance between the Saturn and the Earth is 1,200,000,000 km.

Let t be the time.

As we know, speed = distance/time

So,

t=\dfrac{d}{v}\\\\t=\dfrac{1,200,000,000}{28000}\\\\t=42857.14\ h

So, the required time is equal to 42857.14 hours.

6 0
3 years ago
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