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Lubov Fominskaja [6]
3 years ago
6

The distance from Earth to the moon is 384,400 kilometers. What is this distance expressed in scientific notation?

Mathematics
1 answer:
Oksi-84 [34.3K]3 years ago
4 0

Answer:

3.844 x 10 to the power of 5 is the answer i think

Step-by-step explanation:

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Ne4ueva [31]
X^2-4x-5=0
according viet’s theorem
the roots are 5 and -1
7 0
2 years ago
Kaden works 5 days. The median number of hours he works is 3. The mean number of hours he works is 4.
alisha [4.7K]

Answer:

(a) 1, 2, 3, 6, 8

Step-by-step explanation:

Given

Median = 3

Mean = 4

Required

The sequence of hours worked each day

<em>See attachment for options</em>

From the question, we understand that:

Median = 3

This means that, the middle number is 3 (when sorted)

So, we can conclude that (b) and (c) cannot be true because their middle numbers are 6 and 5 respectively

Next, is to determine the mean of (a) and (d)

The mean of a data is calculated as:

\bar x = \frac{\sum x}{n}

So, we have:

(a)

\bar x = \frac{1+ 2+ 3+ 6+ 8}{5}

\bar x = \frac{20}{5}

\bar x = 4

(d)

\bar x = \frac{1+ 2+ 3+ 4+ 5}{5}

\bar x = \frac{15}{5}

\bar x = 3

Option (a) is true, because it has:

Median = 3

Mean = 4

7 0
3 years ago
Solve <br>the fraction b/9 - 34 &lt;-36​
Andru [333]
The answer i got is b<-18.. i’m not sure if it’s right but you could try ! :).. i’m very sorry if you get it wrong .
8 0
3 years ago
Hello please answer need for homework
NNADVOKAT [17]
What’s your question to ur homework
4 0
2 years ago
I have 1 min left plz i need help
FrozenT [24]

Answer: the first, second, and fourth are correct.


Step-by-step explanation:

28-10%=25.2

28-25%=21

28-35%=18.2


3 0
3 years ago
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