3 years ago

Adding 0 to any number leaves it unchanged.what property of mathematics is this

Mathematics

2 answers:

Kazeer [188]3 years ago

8 0

Additive identity property I believe

romanna [79]3 years ago

8 0

Addictive Identity Property

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3 years ago

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A hot air balloon went from an elevation of 6,678 feet to an elevation of 3,438 feet in 48 minutes. What was its rate of descent

gregori [183]

Answer:

The rate of descent is $-67.5\frac{feet}{minute}$

Step-by-step explanation:

we know that

The formula to calculate the rate or slope between two points is equal to

$m=\frac{y2-y1}{x2-x1}$

Let

x------> the time in minutes

y----> the elevation in feet

we have

$A(0,6,678)\ B(48,3,438)$

Substitute the values

$m=\frac{3,438-6,678}{48-0}$

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3 years ago

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iogann1982 [59]

(2/3)x^2 -6x + 15 = 0
Using the quadratic formula:
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x= [--6 +-sq root(36 -4*(2/3)*15] / 2*(2/3)
x= [6 +-sq root 36 -40] / (4/3)

x1 = 4.5 + (2i / (4/3))
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x2 = 4.5 - (2i / (4/3))
x2 = 4.5 - 1.5i

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4 years ago

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ser-zykov [4K]

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Step-by-step explanation:

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3 years ago

Write the tens and ones subtract 9 from 35

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