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3 years ago

Find the median. 2, 20, 19, 15, 11,9,7,1 OA. 10 OB. 10.5 c. 19 D. 20

Mathematics

2 answers:

pickupchik [31]3 years ago

3 0

Answer:

A. 10

Step-by-step explanation:

First put the numbers in order from least to greatest then find the two numbers in the center of that since there is an even number of numbers there will be two the add and divide by two and you get 10.

1,2,7,9,11,15,19,20

9+11=20

20/2=10

solong [7]3 years ago

3 0

Answer:

Step-by-step explanation:

You line them up from least to greatest, and get rid of one from the left side and then the right side. You do this until there is either one number remaining. If there is two numbers remaining, add them together and divide them by 2.

You might be interested in

3 is what percentage of 12?

marin [14]

Answer:

25%

Step-by-step explanation:

First you have the fraction of 3/12 and need to turn it into a decimal. So to do that you divide 3 by 12 = 0.25. So your percent is 25%

6 0

3 years ago

Help ASAP I stink at these i always give brainliest and thanks

denis23 [38]

Answer:

Step-by-step explanation:

Using the recursive formula with a₁ = 5 , then

a₂ = 2a₁ - 7 = 2(5) - 7 = 10 - 7 = 3

a₃ = 2a₂ - 7 = 2(3) - 7 = 6 - 7 = - 1

a₄ = 2a₃ - 7 = 2(- 1) - 7 = - 2 - 7 = - 9 → A

7 0

3 years ago

The value of Desmond's home is modeled by the function V (x) = 275,000(1.09) ²/³x, where x is the number of years since 2012. By

Tasya [4]

Answer:

Step-by-step explanation:

Given function

V(x) = 275000(1.09)^(2/3x)

Every year the value is changing at the rate:

(1.09)^(2/3) = 1.059 ≈ 1.06

The rate of 1.06 is equivalent of 6% increase per year

4 0

2 years ago

The mass, m grams, of a radioactive substance, present at time t days after first being observed, is given by the formula m=24e^

Reika [66]

Answer:

(i) The value of m when t = 30 is 13.2

(ii) The value of t when the mass is half of its value at t=0 is 34.7

(iii) The rate of the mass when t=50 is -0.18

Step-by-step explanation:

(i) The m value when t = 30 is:

$m = 24e^{-0.02t} = 24e^{-0.02*30} = 13.2$

Then, the value of m when t = 30 is 13.2

(ii) The value of the mass when t=0 is:

$m_{0} = 24e^{-0.02t} = 24e^{-0.02*0} = 24$

Now, the value of t is:

$ln(\frac{m_{0}/2}{24}) = -0.02t$

$t = -\frac{ln(\frac{24}{2*24})}{0.02} = 34.7$

Hence, the value of t when the mass is half of its value at t=0 is 34.7

(iii) Finally, the rate at which the mass is decreasing when t=50 is:

$\frac{dm}{dt} = \frac{d}{dt}(24e^{-0.02t}) = 24(e^{-0.02t})*(-0.02) = -0.48* (e^{-0.02*50}) = -0.18$

Therefore, the rate of the mass when t=50 is -0.18.

I hope it helps you!

3 0

2 years ago

In the year 2005, there were 9.2 deaths per 1000 residents in the United States. If there were 283,651,103 residents in the U.S.

11Alexandr11 [23.1K]

Answer:

2 609 590.15

Step-by-step explanation:

283,651,103 divided by 1000 = 283 651.103

283651.103 multiplied by 9.2 = 2 609 590.15

Depending if they want it rounded up the answer could also be just 2 609 590 (Since yk there can't be 3/20ths of a death.)

3 0

3 years ago