3 years ago

Which of the following sets of numbers could be the lengths of the sides of a triangle?

Mathematics

1 answer:

katrin2010 [14]3 years ago

5 0

A 7.4cm, 10.5cm, 15.5 cm

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The grid shows figure Q and its image figure Q' after a transformation: Figure Q is a pentagon drawn on a 4 quadrant grid with v

kumpel [21]

Check the picture.

we notice that for every pair (x, y) in Q, there is a point (-y, x) in Q',

this means that the transformation is a 90° counterclockwise rotation around the origin.

The transformation can be also noticed by sight in the figure.

Answer: 90° counterclockwise rotation

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3 years ago

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Solve a system of equation by elimination

maks197457 [2]

Answer:

1: (4,1) x=4 y=1

2: (1,10) x=1 y=10

3: (-25/4,5) x= -25/4 y=5

Step-by-step explanation:

It would be a lot to explain all three so if you really need it just ask

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3 years ago

Evaluate 3x2 - 4 when χ= 2. Α. 2 Ο Ο Ο Ο Β. 8 C. 12 Ο D. 32

solniwko [45]

Answer:

D. 32.

Step-by-step explanation:

$3x^2 - 4\\= 3^2 * 2\\= 6^2 - 4\\= 36 - 4\\= 32.$

hope this helps.

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2 years ago

I need help with math please

hram777 [196]

Answer:A

Step-by-step explanation:

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3 years ago

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A tractor was purchased for $30,000 six years ago. what is the value of the tractor today if the depreciation rate was 2.5%?

MrRissso [65]

Initial cost = $30,000
Depreciation rate = 2.5%

Depreciation expense per year = 30,000*2.5/100 = $750
In six years,
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Value of the tractor = Initial cost - Depreciation = $30,000 - $4,500 = $25,500

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3 years ago