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OverLord2011 [107]
3 years ago
5

39477 round to the nearest 1000

Mathematics
1 answer:
erik [133]3 years ago
5 0
39,000
is rounded to the nearest 1000
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Which answer is the approximate standard deviation of the data set?
Ierofanga [76]

Answer:  A. 6.5

Step-by-step explanation:

Here, the given set = { 15, 19 3, 12, 17, 2, 2, 8}

Mean, \overline{ x} = \frac{15+19+3+12+17+2+2+8}{8} = \frac{78}{8} = 9.75

Number of elements, n = 8

\frac{\sum (|x-\overline{x}|)^2}{n}=42.4375

Thus, the standard deviation, \sigma =\frac{\sqrt{\sum(|x-\overline{x}|)^2} }{n}=\sqrt{\frac{339.5}{8}}=\sqrt{42.4375} = 6.51440711\approx 6.5

⇒ Option A is correct.

4 0
3 years ago
Read 2 more answers
Consider the system of equations.
nalin [4]
We know that
The subtraction property of equality<span> tells us that if we subtract from one side of an equation, we also must subtract from the other side of the equation to keep the equation the same

that means

if a=b  and  c=d
a-c=b-d

</span>then 
<span>−8x+4y=0----------> equation 1
a=(-8x+4y)    b=0

−8x+7y=6----------> equation 2
c=(-8x+7y)   d=6

therefore
</span>
(-8x+4y)-(-8x+7y)=0-6
-8x+4y+8x-7y=-6
-3y=-6

the answer is the option 
Subtraction Property of Equality
4 0
3 years ago
I need help :( (please explain how you got your answer too)
ch4aika [34]

Answer:

a. fly = 5.7

b. fly = 7.5

Step-by-step explanation:

a.

hoist/fly = 1 / 1.9

The new hoist is 3. To get this you have to multiply 1 by 3. That means you have to multiply 1.9 by 3 too.

1.9 * 3 = 5.7

b.

hoist/fly = 3/5 (this is the new ratio)

4.5 / 3 = 1.5

5 * 1.5 = 7.5

6 0
3 years ago
What is 25% of 24 squares
Hunter-Best [27]
6 because 25%=1/4 of a number, and 6x4=24. So 1/4 or 25% of 24 is 6
6 0
3 years ago
Read 2 more answers
Can someone help me on problem 2<br> Please ?
Elza [17]

Answer:

x=48

Step-by-step explanation:

48/4=12

please mark brainiest

thank you

7 0
2 years ago
Read 2 more answers
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