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3 years ago

In the figure, if AC = 13 cm, then the length of the median BD =

Mathematics

1 answer:

oee [108]3 years ago

3 0

Answer:

Length of AD = 6.5 cm

Step-by-step explanation:

Given:

AC = 13 cm

Find:

The length of the median BD

Computation:

Median = Length of side / 2

Median = 13 / 2

Median = 6.5 cm

So,

Length of AD = 6.5 cm

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50 POINTS!!!!!!!!!!!!!!!

hram777 [196]

Answer:

10.125

Step-by-step explanation:

Given the data :

28,45,12,34,36,45,19,20

The mean absolute deviation of the data is :

Σ|x - mean| / n

n = number of values = 8

Mean = Σx / n = 239 / 8

Mean = 29.875

Take the sum of the absolute value if the difference between each data value and the mean, then divide by the data size

Using a mean absolute deviation calculator ;

Mean absolute deviation = Σ|x - mean| / n = 10.125

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3 years ago

A. Your bed is a rectangle that is 4 feet by 6 feet wide. Draw a model of it below and label the dimensions. Find the perimeter

musickatia [10]

The model which model the dimensions of the bed has been attached.

The perimeter and area of the bed is 10 feet and 24 square feet respectively.
The perimeter of your bed is less than the perimeter of the items, so not all items can be underneath your bed.

<h3>What is the perimeter and area of the bed?</h3>

Length of the rectangle = 6 feet
Width of the rectangle = 4 feet

Perimeter of the bed = 2(length + width)

= 2(6 + 4)

= 2(10)

= 20 feet

Area of the bed = Length × width

= 6 feet × 4 feet

= 24 square feet

Perimeter of the suitcase = 14 feet
Perimeter of Lego box = 10 feet
Perimeter of memory box = 10 feet
Perimeter of stash = 6 feet

Total perimeter = 14 + 10 + 10 + 6

= 40 feet

Therefore, the items listed can not all be underneath your bed because the total perimeter of the items is greater than the perimeter of your bed.

Read more on perimeter of a rectangle:

brainly.com/question/24571594

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4 0

1 year ago

Math slope intercept form

ololo11 [35]

Answer:

$-\frac{1}{4}$

Step-by-step explanation:

To find the slope intercept form you need to use the formula:

$\frac{y_2-y_1}{x_2-x_1} =slope$

(0,2) (8,0)

(x1,y1) (x2,y2)

$\frac{0-2}{8-0}=\frac{-2/2}{8/2} =-\frac{1}{4}$

7 0

3 years ago

Which set of ordered pairs could be generated by an exponential function?

Natasha_Volkova [10]

Answer:

Step-by-step explanation:

y=x(1/2)^x

7 0

3 years ago

Consider parallelogram VWXY below.

olchik [2.2K]

note:Parallelogram WXYZ not VWXY & I will answer the questions in the image b'cos I don't get your question.

Answers:

a.(i.)Slope of line YZ = 4/5

(ii.)Line adjacent line YZ is line YX,slope of YX =5/4

b.(i.)Length of line YZ =√41 units

(ii.)Length of line YX =√41 units

c.WXYZ is a rhombus.

Step-by-step explanation:

a.Slope=gradient(m)=(y₂-y₁)/(x₂-x₁)

(i.)m of line YZ=(y₂-y₁)/(x₂-x₁) where Y(-6,-1) & Z(-1,3)

(I believe you know what the y₂,y₁,x₂ & x₁ stand for.)

So m=(y₂-y₁)/(x₂-x₁),=(3-(-1))/(-1-(-6) =(4)/(5)=4/5

∴m of line YZ is 4/5

(ii.)m of line YX=(y₂-y₁)/(x₂-x₁) where Y(-6,-1) & X(-2,4)

So m=(y₂-y₁)/(x₂-x₁),=(4-(-1))/(-2-(-6) =(5)/(4)=5/4=1.25

∴m of line YX is 5/4

b.(i.)To find the length of line YZ,we have to express it as column vector YZ.

Vector YZ=OZ-OY,Z-Y=(-1,3)-(-6,-1)=(5,4)

Length=√x² plus y²=√5² plus 4²=√25 plus 16=√41 units

∴The length of line YZ is √41 units.

(ii.)To find the length of line YX,we have to express it as column vector YZ.

Vector YX=OX-OY,X-Y=(-2,4)-(-6,-1)=(4,5)

Length=√x² plus y²=√4² plus 5²=√16 plus 25=√41 units

∴The length of line YX is √41 units.

c.WXYZ is a rhombus.

5 0

2 years ago