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anygoal [31]
3 years ago
8

Hello is anyone there

Mathematics
2 answers:
Otrada [13]3 years ago
8 0

Answer:

I think is a!!!!

jajajaj

Step-by-step explanation:

Snezhnost [94]3 years ago
4 0

Answer:

a

Step-by-step explanation:

You might be interested in
A room is 20 feet by 25 feet with a 10-foot ceiling. If Mickey paints the walls and the ceiling, how much surface area will he c
Svetradugi [14.3K]

Answer:

1400ft²

Step-by-step explanation:

Given

Room Dimension: 20 ft by 25 ft by 10 ft

Where Length = 20 ft

Width = 25 ft

Height = 10 ft

Required

Surface area of painted walls and ceiling

We'll assume that the room is rectangular in shape and all 4 sides are covered.

<em>This means that Mickey will paint 4 walls and 1 ceiling.</em>

The dimension of the 2 of the 4  walls is as follows;

20ft by 10ft, 25ft by 10ft,

Because opposite sides of a rectangle are equal, the dimension of the remaining 2 walls is: 20ft by 10ft, 25ft by 10ft

Calculating the area of the 4 walls;

Area = 20ft * 10ft + 25ft * 10ft + 20ft * 10ft + 25ft * 10ft

Area = 200ft^2 + 250ft^2 + 200ft^2 + 250ft^2

Area = 900ft^2

The dimension of the ceiling is as follows:

20ft by 25ft

Calculating the area of the ceiling

Area = 20ft * 25ft

Area = 500ft^2

So, the area Micky will cover = Area of 4 walls + Area of ceiling

Total Surface Area = 900ft^2 +500ft^2

Total Surface Area = 1400ft^2

Hence, Micky will cover 1400ft²

6 0
4 years ago
A researcher at a large company has collected data on both the beginning salary and the current salary of 48 randomly selected e
Nadya [2.5K]

Answer:

a. 0.83

b. 44107.3

c. 2252.7

Step-by-step explanation:

a)

The correlation coefficient is calculated as

byx=rSy/Sx

rSy=byx*Sx

⇒r=byx*Sx/Sy

Sy=standard deviation of y=standard deviation of current salary=15300

Sx=standard deviation of x=standard deviation of beginning salary=5970

byx=2.12

r=2.12*5970/15300

r=12656.4/15300

r=0.83

There is a strong positive correlation between current and beginning salary.

b)

Beginning salary=$22000

As

y^ =−2532.7 + 2.12x.

Current salary=-2532.7+2.12*beginning salary

Current salary=-2532.7+2.12*22000

Current salary=-2532.7+46640

Current salary=$44107.3

The predicted current salary of Mr. Joseph Keller is $44107.3.

c)

Residual=y-y^=Observed-Predicted

Observed Current Salary of Kathy Jones=40000

Beginning salary of Kathy Jones=19000

y^ =−2532.7 + 2.12x.

Predicted Current salary=-2532.7+2.12*beginning salary

Predicted Current salary=-2532.7+2.12*19000

Predicted Current salary=-2532.7+40280

Predicted Current salary=$37747.3

Residual=Observed Current Salary-Predicted Current salary

Residual=40000-27747.3

Residual=$2252.7

The residual for Ms. Jones is $2252.7.

8 0
3 years ago
Help Help Help please!
sergij07 [2.7K]

Answer:

this might take a while

7 0
3 years ago
%to find the euclidean distance between two vectors, find the 2-norm of the difference of %those vectors. enter column vectors u
sergij07 [2.7K]

the norm of the distance is |d|=97.95 ft

the vector of the distance is d=96i+18j+27k

  • Vector : a quantity having direction as well as magnitude, especially as determining the position of one point in space relative to another.
  • an organism, typically a biting insect or tick, that transmits a disease or parasite from one animal or plant to another.
  • Step-by-step explanation:
  • As per the attached image, the distance from the origin of the x y & z axis is where the vector starts and it ends at the opposite side of the room.
  • Calculating the norm as the square root of the sum of each side of the rooms squared & calculating the vector as each side of the room multiplied by the i, j & k axis, the results are as mentioned above.

       To learn more,

       Visit : brainly.com/question/13419770

       #SPJ4

8 0
2 years ago
Is this right? please help me
Dimas [21]

Answer: i would help but the picture is blank .

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
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