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lesya [120]
3 years ago
6

The radius of Earth is about 6.38 x 10³ kilometers. Write this distance in standard notation ​

Mathematics
2 answers:
pashok25 [27]3 years ago
8 0

6.38 * 10^3 = 6380 kilometers.

Hope this helped!

Elza [17]3 years ago
4 0

Answer:

6380km

Step-by-step explanation:

10³ is just 1000 if you think about it.

6.38 multiplied by 1000 would just mean you need to move the decimal to the right 3 times.

Also if you look up the earth's radius on wikipedia, it says 6,371km which is close to 6,380km.

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A triangle with sides of lengths 16,30,and 35 is a right triangle?<br> a. true<br> b. false
Anon25 [30]
 
-- The square of the shortest side . . . 16² = 256
-- The square of the medium side . . . 30² = 900
-- Their sum . . . (256 + 900) = <u>1,156</u>

-- The square of the longest side = 35² = <u>1,225</u>

1,156 and 1,225 are not equal, so these 3 numbers
<em>can</em> be the sides of a triangle, but it's not a right one.

The statement is <em>false</em>. (choice 'b')

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3 years ago
In a cohort of 35 graduating students, there are three different prizes to be awarded. If no student can receive more than one p
sweet [91]

We have been given in a cohort of 35 graduating students, there are three different prizes to be awarded. We are asked that in how many different ways could the prizes be awarded, if no student can receive more than one prize.

To solve this problem we will use permutations.

_{r}^{n}\textrm{P}={_{3}^{35}\textrm{P}}

We know that formula for permutations is given as

_{r}^{n}\textrm{P}=\frac{n!}{(n-r)!}

On substituting the given values in the formula we get,

{_{3}^{35}\textrm{P}}=\frac{35!}{(35-3)!}=\frac{35!}{32!}

=\frac{35\cdot 34\cdot 33\cdot 32!}{32!}\\&#10;\\&#10;=35\cdot 34\cdot 33=39270

Therefore, there are 39270 ways in which prizes can be awarded.


6 0
3 years ago
2x + 4 = 3(x – 2) + 1<br> simplify
Rudik [331]
2x + 4 = 3(x - 2) + 1
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Shtirlitz [24]
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3 years ago
19 - k = 4. <br><br><br><br><br>I need help​
Marysya12 [62]

Answer:

15

Step-by-step explanation:

first you have to subtract 4 from 19 to get what k is. that should be your answer. good luck!

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2 years ago
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