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Paha777 [63]
3 years ago
12

How to do domain and range

Mathematics
1 answer:
Ann [662]3 years ago
8 0
A domain is a set of all first elements of ordered pairs (x-coordinates) The range is the set of second elements of ordered pairs (Y-coordinates) Domain and range can be seen clearly on the graphic
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Members of the drama club spend $795 on t-shirts and sweatshirts for a play.They purchase 20 more tshirts than sweatshirts.They
Anika [276]

Answer:

The drama club bought 35 t-shirt

Step-by-step explanation:

Let

t-shirt = x

Sweatshirt = y

Total cost = $795

They purchase 20 more tshirts than sweatshirts

x = y + 20

The equation is:

12x + 25y = 795

12(y + 20) + 25y = 795

12y + 240 + 25y = 795

37y = 795 - 240

37y = 555

y = 15

Substitute y = 15 into

x = y + 20

x = 15 + 20

x = 35

t-shirt = 35

Sweatshirt = 15

The drama club bought 35 t-shirt

8 0
3 years ago
(a + b - c )(a + b + c )
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If you are looking for the expanded version, this is it. It is also possible to group either an a from (a^2 + 2b) or a b from (2ab + b^2). Hope this helps!

6 0
3 years ago
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Which is equivalent to cube root 8^x?
VARVARA [1.3K]

Answer:

2

Step-by-step explanation:

³√8 = 2

hope it's helpful

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3 years ago
Solve for x<br> 5x + 6 &lt; 3x + 7
Illusion [34]

Answer:

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Complete the square 3x^2+12x=15
barxatty [35]

Step-by-step explanation:

3 {x}^{2}  + 12x = 15 \\ 3 ({x}^{2}  + 4x) = 15 \\  {x}^{2}  + 4x = 5 \\  {x}^{2}  + 4x  = 5 \\  {x}^{2}  + 4x + 4 = 5 + 4 \\ {x}^{2}  + 4x + 4 = 9 \\ {x}^{2}  + 4x +  {2}^{2}  =  {3}^{2}  \\ \red{ \bold{ (x + 2)^{2}   =  {3}^{2}}}  \\

3 0
3 years ago
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