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Finger [1]
3 years ago
15

Which statement is correct when comparing the MEAN and MEDIAN of this data set?

Mathematics
2 answers:
Dmitrij [34]3 years ago
7 0

Answer:

A) The mean value is greater than the median value.

Step-by-step explanation:

Mean = (0.65+0.50+1.25+0.75+2.25)÷5 = 1.08

Median is the 3rd value = 0.75. (Values arranged from least to greatest)

Dahasolnce [82]3 years ago
5 0

Answer:

the mean value is greater than the median value

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A rumor spreads among a group of 400 people. The number of people, N(t), who have heard the rumor by the time t in hours since t
Sindrei [870]

Answer:

  about 15 hours

Step-by-step explanation:

You want to find t such that N(t)=200. Fill in the equation with that information and solve for t.

  200 = 400/(1 +399e^(-0.4t))

  1 +399e^(-0.4t) = 400/200 = 2 . . . . . multiply by (1+399e^(-0.4t))/200

  399e^(-0.4t) = 1 . . . . . . . . . . . . . . . . . . subtract 1

  e^(-0.4t) = 1/399 . . . . . . . . . . . . . . . . . .divide by 399

  -0.4t = ln(1/399) . . . . . . . take the natural log

  t = ln(399)/0.4 ≈ 14.972 . . . . . . . divide by -0.4, simplify

Rounded to tenths, it will take 15.0 hours for half the people to have heard the rumor.

3 0
4 years ago
What is the least common denominator of 4/x * -4/2x^2?
Vanyuwa [196]
The least common denominator would be 2x^2
that is because you would have to multiply the first fraction by 2x
but you can't just somehow simplify 2x^2, it wouldn't be right
4/x * -4/2x^2
2x*4/(2x*x) * -4/2x^2
8x /2x^2 * -4/2x^2
Then you would complete it 

Hope this helps :)
6 0
3 years ago
Read 2 more answers
ASAP NO LINKS EXPLANATION PLEASE a boat traveled 400 miles in 8 hours find its rate of speed in miles per hours
Vladimir79 [104]

Answer:

50 miles per hours

Step-by-step explanation:

400 miles per 8 hours is the same as

200 miles for 4 hours which is the same as

100 miles for 2 hours which is still the same as

50 miles per hour

I just divided each one by two until I reached the unit rate

5 0
3 years ago
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PLS HELP!! WILL GIVE BRAINLIEST!!
Inessa [10]

Answer:

Step-by-step explanation:

take lcm of (2x-1)(x+2)

lcm=(2x-1)(x+2)

=2(x+2)-1(2x-1)/(2x-1)(x+2)

=(2x+4)-(2x-1)/(2x(x+2)-1(x+2)

=2x+4-2x+1/2x^2+4x-x+2

=4+1/2x^2+3x+3

=5/2x^2+3x+3

6 0
3 years ago
24 ten thousands + 11 thousands Write the sum in standard form?
hodyreva [135]
The standard form is 24,000,011
3 0
3 years ago
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