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3 years ago

What is the number three thousand eighty expressed in scientific notation?

Mathematics

1 answer:

valentinak56 [21]3 years ago

6 0

Answer:

3.08 x $10^{3}$

Step-by-step explanation:

3080 = 3.08 x 1000 = 3.08 x $10^{3}$

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A sociologist recently conducted a survey of senior citizens who have net worths too high to qualify for Medicaid but have no pr

hjlf

Answer:

a) $s= 9.74$

D. 9.74

b) $Median= 74$

B. 74

Step-by-step explanation:

Part a

We have the following dataset given:

69 74 75 62 70 93 64 69 61 88 67 77 87 90 66 91 77 63 82 82 71 74 76 65 83

We can begin calculating the sample mean with the following formula:

$\bar X = \frac{\sum_{i=1}^n X_i}{n}$

And replacing we got:

$\bar X = 75.04$

Now we can calculate the sample deviation with the following formula:

$s =\sqrt{\frac{\sum_{i=1}^n (X_i-\bar X)^2}{n-1}}$

And after replace we got:

$s= 9.74$

Part b

For this case we need to sort the value on increasing way:

[1] 61 62 63 64 65 66 67 69 69 70 71 74 74 75 76 77 77 82 82 83 87 88 90 91 93

And the median would be the value in the position 13 and we got:

$Median= 74$

6 0

3 years ago

A laundry basket has 24-shirts in it. Four are navy, 12 are red, and the remaining are white. What is the probability of not sel

Ilya [14]

Answer:

The fraction white is one third.

Step-by-step explanation:

4 0

3 years ago

Read 2 more answers

Nolan's car used 2 gallons to travel 50 miles. How far can he travel on 3 gallons?

ElenaW [278]

Answer:

On 3 gallons, he could travel 75 miles

Step-by-step explanation:

50 / 2 = 25 miles per gallon

25 * 3 = 75miles

5 0

3 years ago

What is the geometric mean 2 and 7?

puteri [66]

Answer: $\sqrt{14}$

Work Shown:

$\text{x} = \text{geometric mean of A and B}\\\\\text{x} = \sqrt{A*B}\\\\\text{x} = \sqrt{2*7}\\\\\text{x} = \sqrt{14}\\\\$

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2 years ago

10 squared divided by 2c -b + 3a<br><br> A = 1/3<br> B= 9<br> C = 5

Svet_ta [14]

Answer:

Step-by-step explanation:

Figure out all variables

100/(2x5= 10)-9+(3x.33=1)

100/10-9+1

100/2

8 0

4 years ago