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Vadim26 [7]
3 years ago
8

If f(x) = x2 – 1 and g(x) = 2x – 3, what is the domain

Mathematics
1 answer:
Ainat [17]3 years ago
5 0
Begin by finding the lowest point the quadratic equation can be, the vertex; 

x²-1= is just a translation down of the graph x²

vertex; (0, -1) and since the graph of x² would extend to infinity beyond that point, we can say {x| x≥0} for domain and {y| y≥-1}. 

For the linear equation, it is possible to have all x and y values, therefore range and domain belong to all real numbers. 

Hope I helped :) 
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What is an equivalent form of 14(p + 6) − 10(2q + 5)?
aalyn [17]

The equivalent form of 14(p + 6) − 10(2q + 5)  is 14p − 20q + 34.

<h3>What is mathematical expansion?</h3>

An mathematical expansion occurs when a mathematical object is been scaled using a  scale factor that is greater in absolute value than one.

14(p + 6) − 10(2q + 5)  

If we open the bracket, we have

14p − 20q + 34

Therefore option D is correct.

Learn more about mathematical expansion from

brainly.com/question/13602562

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5 0
1 year ago
Write -7.5 as a common fraction.
Alina [70]

Answer:

-15/2  (or  -7 1/2)

Step-by-step explanation:

-7.5 is equal to -75/10.

When you simplify it, you get:

-15/2  which simplifies to -7 1/2

4 0
3 years ago
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3 years ago
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What is 1/2 + 10 equal?
Veseljchak [2.6K]

Answer:

10 1/2

Step-by-step explanation:

3 0
2 years ago
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4x + 9y = 4
saw5 [17]

Answer:

x=101/65, y=-16/65. (101/65, -16/65).

Step-by-step explanation:

4x+9y=4

9x+4y=13

----------------

9(4x+9y)=9(4)

-4(9x+4y)=-4(13)

------------------------

36x+81y=36

-36x-16y=-52

----------------------

65y=-16

y=-16/65

4x+9(-16/65)=4

4x-144/65=4

4x=4+144/65

4x=404/65

x=(404/65)/4=101/65

x=101/65, y=-16/65.

7 0
3 years ago
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