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AlekseyPX
3 years ago
11

What is an equation that is true for every value

Mathematics
1 answer:
Eva8 [605]3 years ago
4 0
Here's one:
                         (x + 1) (x - 1) = x² - 1

Another one: 
                         x³ / x(x²)  =  1

How about        (x² + 6x - 17)⁰  =  1

Or triggily:        sin²(x) + cos²(x)  =  1
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Which number is a rational number
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The one in the top left is a rational number because 6/4 *6/4 is 36/16
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4 years ago
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The original value of a sculpture is $950, and the value decreases by 15% each year. Find the value of the sculpture in 8 years.
german

Answer:

The value of the sculpture in 8 years is $258.865

Step-by-step explanation:

The original value of sculpture = $950

we are given that the value decreases by 15% each year.

Formula : N(t)=N_0(1-r)^t

Where N(t)=Value after t years

N_0 = Initial value

r = rate of decrease in decimals

t = time

We are supposed to find  the value of the sculpture in 8 years.

Substitute the values in the formula :

So,N(t)=950(1-0.15)^8=258.865

Hence the value of the sculpture in 8 years is $258.865

5 0
3 years ago
A semicircle was cut from a square sheet of blue construction paper . What is the area of the remaining blue construction paper
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Answer:

60.73cm

Step-by-step explanation:

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area of full circle=78.5398...

area of semicircle=39.2699...

area of square=100cm

100-39.26990817=60.73 cm

8 0
3 years ago
450.000 divided by 40??
maks197457 [2]
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Factor the expression completely 21x-9
Ronch [10]

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3(7x - 3)

Step-by-step explanation:

21x - 9

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