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Margarita [4]
3 years ago
7

Verify that parallelogram ABCD with vertices A(-5, -1), B(-9, 6), C(-1, 5), and D(3, is a rhombus by showing that it is a parall

elogram with perpendicular diagonals.​

Mathematics
1 answer:
77julia77 [94]3 years ago
3 0

multiplication of the gradients of the two diagonals is equals to -1 if they are perpendicular

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Percy bought an encyclopedia pried at $13.85 shipping and handing cost an additional 20 percent of the price
ipn [44]

Answer:

Percy spent $2.77 for shipping and handling.

Step-by-step explanation:

2.77 is 20 percent of 13.85

6 0
3 years ago
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ANTONII [103]

4+5=9+5=14+5=19+5=24

4,9,14,19,24

7 0
3 years ago
Solve each system using substitution: 7x-2y=1 2y=x-1
Mrrafil [7]
Hello :
<span>7x-2y=1 ...(1)
 2y=x-1...(2)
</span><span>substitution  2y in (1) :
</span>7x-(x-1) = 1
7x-x+1 = 1 
7x = 0
x=0
in (2) :   2y = 0-1
2y = -1        y=  -1/2
the <span>system have one solution :  (0 ;-1/2)</span>
7 0
3 years ago
How to write Q={1,2,3,5} in set builder form?<br>​
blagie [28]

Answer:

{x:x is a natural number less than 6}

Step-by-step explanation:

Set builder is a type of set where we have to represent any value inside a set

by using the variable x, v, b, a, c etc.

Eg A={1,2,3,4}

For eg {a: a is a natural number less than 5}

8 0
2 years ago
Can someone find x for these questions
Maurinko [17]

Answer:

8, 36, -12

Step-by-step explanation:

Q2

41 = 8x - 23

8x = 41 + 23

8x = 64

x = 8

Q4

11 = x/2 - 7

22 = x - 14

22 + 14 = x

x = 36

Q6

3(x - 8) = -60

x - 8 = -20

x = -12

8 0
3 years ago
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