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brilliants [131]
3 years ago
6

Find the value of x and y.​

Mathematics
1 answer:
Leya [2.2K]3 years ago
6 0

Answer:

??

Step-by-step explanation:

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The coordinates of quadrilateral ABCD are A(-1,-5), B(8,2), C(11,13), and D(2,6). Using coordinate geometry, prove that quadrila
Sliva [168]

Answer:

The quadrilateral ABCD is a rhombus.

Step-by-step explanation:

A rhombus is a quadrilateral having equal sides.

If ABCD is a rhombus then,

AB = BC = CD =  DA

It is provided that the coordinates of the rhombus ABCD are:

A = (-1, -5)

B = (8, 2)

C = (11, 13)

D = (2, 6)

Use the distance formula to compute the lengths of AB, BC, CD and DA.

The distance formula is:

d=\sqrt{(x_{2}-x_{1})^{2}+(y_{2}-y_{1})^{2}}

Compute the length of AB:

AB=\sqrt{(8-(-1))^{2}+(2-(-5))^{2}}=\sqrt{130}=11.4

Compute the length of BC:

BC=\sqrt{(11-8)^{2}+(13-2)^{2}}=\sqrt{130}=11.4

Compute the length of CD:

CD=\sqrt{(2-11)^{2}+(6-13)^{2}}=\sqrt{130}=11.4

Compute the length of DA:

DA=\sqrt{(2-(-1))^{2}+(6-(-5))^{2}}=\sqrt{130}=11.4

Thus, the lengths AB, BC, CD and DA are equal, i.e. all sides are of length 11.4.

Hence proved that the quadrilateral ABCD is a rhombus.

7 0
3 years ago
a truck company places their office phone number on the black of all of their vehicles to receive comments on how well their emp
kolbaska11 [484]

Answer:

Voluntary sampling

Step-by-step explanation:

In this sample, people elect to participate.  They volunteer.  That makes this a voluntary sample.

8 0
3 years ago
Read 2 more answers
What is 160% of 19? What is 0.9% of 54? What is 15% of 376?
mafiozo [28]
160% of 19 is 30.4

Convert 160 into a decimal: 160%/100 = 1.6
Multiply the decimal by 19: 1.6 × 19 = 30.4 <-- our answer.
------

0.9% of 54 is 0.486

Convert 0.9% in a decimal: 0.9%/100 = 0.009
Multiply the decimal by 54: 0.009 × 54 = 0.486 <-- our answer.
-------

15% of 376 is 56.4

Convert the percentage into a decimal: 15%/100 = 0.15
Multiply the decimal by 376: 0.15 × 376 = 56.4 <-- our answer.


8 0
3 years ago
.......................
padilas [110]

Answer:

its choice 1 can i get brainly

Step-by-step explanation:

8 0
2 years ago
Find the value of x. 600x = 360000
Kruka [31]
600x = 360000
So, the x should mean 'times'.
600 x 600 = 360000.
x = 600.

5 0
3 years ago
Read 2 more answers
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