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sladkih [1.3K]
3 years ago
15

an electric can opener is worth 38 dollars when it is new. After each year it is worth half what it was the previous year. What

will it's worth be after 4 years?
Mathematics
1 answer:
BigorU [14]3 years ago
7 0
1 Year: 19
2 Years: 9.50
3 Years: 4.75
4 Years: 2.38 (2.375, but rounded)
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Karolina [17]

Answer:

-2y=-5x=3

Step-by-step explanation:

Make sure every variable is on one side of the equation and you get the answer.

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On a coordinate plane, parallelogram H I J K is shown. Point H is at (negative 2, 2), point I is at (4, 3), point J is at (4, ne
4vir4ik [10]

Answer: HIJK is a parallelogram because the midpoint of both diagonals is <u>(1,0)</u> , which means the diagonals bisect each other.

Step-by-step explanation:

Given: The coordinates of parallelogram H I J K as

H is at (- 2, 2), point I is at (4, 3), point J is at (4, - 2), and point K is at (- 2, - 3).

Diagonals : HJ and IK  [join opposite vertices]

Mid point of HJ = (\dfrac{x_1+x_2}{2},\dfrac{y_1+y_2}{2})

=(\dfrac{-2+4}{2},\dfrac{2+(-2)}{2})=(1,0)

i.e. Mid point of HJ = (1,0)

Mid point of IK = (\dfrac{x_1+x_2}{2},\dfrac{y_1+y_2}{2})

=(\dfrac{4+(-2)}{2},\dfrac{3+(-3)}{2})=(1,0)

i.e. Mid point of IK = (1,0) =Mid point of HJ

<em>When mid points of both diagonals are equal then that means the diagonals bisect each other.</em>

<em />

Thus, HIJK is a parallelogram because the midpoint of both diagonals is <u>(1,0)</u> , which means the diagonals bisect each other.

8 0
3 years ago
Find the distance between -6 and 10
Elanso [62]

Answer:

16

Step-by-step explanation:

7 0
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TEA [102]

Answer:

Step-by-step explanation:

Consider -7-4r=-15. Adding 7 on both sides of the equation,

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Plug in value of r in r/2 + 9 = 2/2+9 = 1+9 = 10

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Nimfa-mama [501]

The answer is C

Step-by-step explanation:

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