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Gemiola [76]
3 years ago
15

A sweater is on sale for 20% off the original price, x.

Mathematics
1 answer:
sergey [27]3 years ago
7 0
 a decrease of 20% means u r paying 80%.......so a decrease of 20% is the same as multiplying by 80%
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Arte-miy333 [17]
B. Rolling an even or not on the first says nothing about the second dice
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2 years ago
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Which term completes the product so that it is the difference of squares?
FromTheMoon [43]

Answer:

the answer is  3

Step-by-step explanation:

(-5x-3)(-5x+3)=(5x)^2 - (3)^2

A difference of squares is the difference of two squared terms.

We have

a^2 - b^2

We can factorize the difference of squared terms like this:

a^2-b^2 = (a+b)(a-b)

We have (-5x-3)(-5x+3)

Lets prove it:

(-5x-3)(-5x+3) = (-5x*-5x)+(-5x*3)+(-3*-5x)+(-3*3)

(-5x-3)(-5x+3) = 25x^2+(-15x)+(15x)+(-9)

(-5x-3)(-5x+3) = 25x^2-15x+15x-9

(-5x-3)(-5x+3) = 25x^2-9

(-5x-3)(-5x+3) = (5x)^2 - (3)^2

6 0
3 years ago
Read 2 more answers
The area of a rectangular bathroom mirror is 9 square feet. the mirror is 3 feet wide. how tall is it?
lisabon 2012 [21]
You multpily the length and the width to find the area of a shape. If the square is 3ft wide, then the square is also 3 ft long if the area is 9.
so, how tall is it?
3 ft. I meant rectangle. Its still the same for the height.
5 0
2 years ago
Find The Difference.
PIT_PIT [208]
5 - 1 2/9 = 3 7/9

Hope this helps!

8 0
2 years ago
the domain of a function f(x) is x > 1, and the range is y < -2. What are the domain and range of its inverse function, f^
Marianna [84]

9514 1404 393

Answer:

  • domain: x < -2
  • range: y > 1

Step-by-step explanation:

Domain and range of the inverse function are swapped: the domain of the function is the range of its inverse, and vice versa.

__

The graph shows an example of a function and its inverse with the given domain and range. The function is red; its inverse is blue.

8 0
3 years ago
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