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Lesechka [4]
3 years ago
7

Find the mean and the median of the data set: 9, 7, 7, 4, 18 , 8, 5, 2,

Mathematics
2 answers:
PtichkaEL [24]3 years ago
8 0
The mean and median of this date set is;
Mean: 44.25
Median: 7
Date set in order: 2,4,5,7,7,8,9,18
pentagon [3]3 years ago
6 0
Median is 7 and the mean is 7.28571 , range is 16 and the mode is 7
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Need that help.......plz
Anika [276]
For Question Number one
(2+10)²+4=148

Question Number two:
(6+5)×(8-6)=22



5 0
3 years ago
A huge ice glacier in the Himalayas initially covered an area of 454545 square kilometers. Because of changing weather patterns,
zloy xaker [14]

Answer:

t=-20ln\left(\dfrac{1}{3}\right)

Step-by-step explanation:

The relationship between A, the area of the glacier in square kilometers, and t, the number of years the glacier has been melting, is modeled by the equation.:

A=45e^{-0.05t}

We want to determine the value of t for which the area, A(t)=15 square kilometers.

15=45e^{-0.05t}\\$Divide both sides by 45\\\dfrac{15}{45} =\dfrac{45e^{-0.05t}}{45}\\\dfrac{1}{3}=e^{-0.05t}\\$Take the natural logarithm of both sides\\ln\left(\dfrac{1}{3}\right)=ln\left(e^{-0.05t}\right)\\ln\left(\dfrac{1}{3}\right)=-0.05t\\$Divide both sides by -0.05$\\t=-\dfrac{ln\left(\dfrac{1}{3}\right)}{0.05} \\=-\dfrac{ln\left(\dfrac{1}{3}\right)}{0.05}\\t=-20ln\left(\dfrac{1}{3}\right)

Therefore, the time for which the area will be 15 sqyare kilometers is:

-20 ln(1/3) years.

7 0
3 years ago
Please help, I've attached the picture and the answer choices.
pogonyaev
Slope = (-2 + 4)/(-2-2) = 2/-4 = -1/2

y = mx + b
so
b = y - mx
b = -2 -(-1/2)(-2)
b = -2 - 1
b = - 3

equation
y = -1/2x - 3

answer is B.
y = -1/2x - 3
6 0
3 years ago
i have a division problem (7200 divided by 68) and i can't solve it, so i used a calculator and calculator said the answer is 10
Hitman42 [59]
When you do  the second step it is 40 so you add one zero from the 7200 and thats where you got the zero

5 0
3 years ago
how to determine total amount of calls in a survey about response times for selected emergency services
VladimirAG [237]

Answer:

approximately 15 minutes response time consistantly

Step-by-step explanation:

5 0
3 years ago
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