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krok68 [10]
3 years ago
6

What is the opposite of 2? :D

Mathematics
2 answers:
Juliette [100K]3 years ago
8 0

Answer:

-2

Step-by-step explanation:

Opposite number or additive inverse of any number (n) is a number which, if added to n, results in 0, the identity element of addition. The opposite number for n is written as −n.

Anna007 [38]3 years ago
6 0

Mathematical key for opposite numbers:

The opposite of a negative number is its positive number.

The opposite of a positive number is its negative number.

Therefore, the opposite of 2 is -2.

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The value of the surface area of the cylinder is equal to the value of the volume of the cylinder. Find the value of x
Slav-nsk [51]

pi·(7.2/2)^2·x = 2·pi·(7.2/2)^2 + 2·pi·(7.2/2)·x

x = 4.5 = 4 1/2

O = V = 1458/25·pi = 58.32·pi

3 0
3 years ago
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The perimeter of a rectangular piece of plastic is 30 millimeters. The area is 54 square millimeters. What are the dimensions of
Delvig [45]

Answer:

6 mm and 9 mm are the dimensions of the piece of plastic.

Step-by-step explanation:

Keep in mind the formulas for the area and perimeter of a rectangle:

A = lw

P = 2 (l + w)

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1, 2, 3, 6, 9, 18, 27, 54

POSSIBLE DIMENSIONS of the piece of plastic:

1 mm and 54 mm:

Area - 54 mm^2

Perimeter - 110 mm

2 mm and 27 mm

Area - 54 mm^2

Perimeter - 58 mm

3 mm and 18 mm

Area - 54 mm^2

Perimeter - 42 mm

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Perimeter - 30 mm

The rectangular piece of plastic with the dimensions 6mm and 9 mm corresponds with the area and perimeter of the piece of plastic mentioned. So these are the correct dimensions.

Hope this helps!

6 0
3 years ago
Please help me with this its timed first person to give me correct answer gets 25 points
-Dominant- [34]

Answer:

8. 14 for the third question.

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Step-by-step explanation:

the third and forth orange equations.

8 0
3 years ago
Carlo buys $14.40 worth of grapefruit. Each grapefruit costs $0.80.<br> how many does he have
gtnhenbr [62]

Answer:

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Step-by-step explanation:

3 0
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sashaice [31]
The value  of the sine, cosine and tangent of the figure will be found as follows:
a] Sine
sin x=(opposite)/(hypotenuse)
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thus:
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hypotenuse=25
cos x=24/25

Tangent
Tan x=opposite/adajcent
opposite=7
adjacent=24
thus
tan x=7/24

5 0
3 years ago
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