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2 years ago

I HAVE TO ADD SMTH HERE

Mathematics

2 answers:

mel-nik [20]2 years ago

6 0

Answer:

-7

Step-by-step explanation:

Mamont248 [21]2 years ago

5 0

Answer:

option c

Step-by-step explanation:

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In the last chapter, we looked at three outliers arising from a plot of Average Wind Speed by Month in the Hopkins Forest. Each

Aloiza [94]

Answer:

Step-by-step explanation:

Hello!

We have the information of the average wind speed for three months:

February:

Mean: 2.324

SD: 1.577

Otlier: 6.73 mph

June:

Mean: 0.857

SD: 0.795

Otlier: 3.93 mph

August

Mean: 0.63

SD: 0.597

Outlier: 2.53mph

Z= X - μ ~N(0;1)

$Z_{February}= \frac{6.73 - 2.324}{1.577}$

$Z_{Februar}= 2.793$ ≅2.79

$Z_{June}= \frac{3.93 - 0.857 }{0.795}$

$Z_{June}= 3.87$

$Z_{August}= \frac{2.53 - 0.63}{0.597}$

$Z_{Augus}= 3.182$ ≅ 3.18

Comparing the three Z-scores you can say that the strongest wind event was in June. The number obtained means that is the furthest one in relation to the mean.

4 0

4 years ago

The city park department is planning to enclose a play area with fencing. One side of the area will be against an existing build

Oksanka [162]

Answer:

The maximum rectangular area will have the length 400 meters and width 200 meters with one side of the length against an existing building.

Step-by-step explanation:

From the given information;

The perimeter of a rectangle = 2 (L+B)

here;

L = the length of the side of the fence

B = the width of the fence

So; The perimeter of a rectangle = 2L+2B

we are also being told that;

One side of the area will be against an existing building

i.e

The perimeter of a rectangle is now = L + 2B = 800 meters

L = 800 - 2B

Similarly; Area of a rectangle = L × B

Area of a rectangle = ( 800 - 2B) × B

Area of a rectangle = 800B - 2B²

assuming A(B) to represent the Area;

Then the maximum area A'(B) = 0 ;

Thus,

A'(B) = 800 - 4B = 0

-4B = - 800

4B = 800

B = 200

Therefore; the maximum area have a width = 200 meters and a length 800 - 2(200) = 800 - 400 = 400 meters

3 0

4 years ago

Please help thank you

sergiy2304 [10]

8-3(2)
8-5
=3
the answer should be 3 after plugging in the variables.

3 0

3 years ago

The diameter of a circle is 7m. Find its area in terms of pie(urgent plz help)

wolverine [178]

Answer:

12.25 pi

Step-by-step explanation:

radius=3.5

area=pi(r^2)

12.25pi

7 0

4 years ago

15y - 3x + 4x - 5y<br> please help me

natima [27]

Answer:

Combine like terms

10y+ x

Put it in order

X+10y

8 0

3 years ago

Read 2 more answers