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lianna [129]
3 years ago
7

Find ordered pairs for y= 2x + 3 if x is {1,2,3}

Mathematics
1 answer:
vitfil [10]3 years ago
7 0

Answer:

(1,5),(2,7),(3,9)

Step-by-step explanation:

x= 1

=> y=2*1+3 = 5

x=2

=> y=2*2+3 = 7

x=3

=> y=2*3+3 = 9

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The sum of the page numbers on the facing pages of a book is 761. What are the page​ numbers?
Likurg_2 [28]

Answer:

761 *2+1 is the formula

5 0
4 years ago
Hence, write as single<br> frachon in its lowest terms.<br> 2/y-1 - 4/y^2-1
sleet_krkn [62]

Answer:

\frac{2}{y+1}

Step-by-step explanation:

Factorise the denominator of the second fraction

y² - 1 = (y - 1)(y + 1) ← difference of squares

To obtain a common denominator

multiply numerator/ denominator of first fraction by (y + 1)

= \frac{2(y+1)}{(y-1)(y+1)} - \frac{4}{(y-1)(y+1)} ← subtract numerators leaving the common denominator

= \frac{2y+2-4}{(y-1)(y+1)}

= \frac{2y-2}{(y-1)(y+1)}

= \frac{2(y-1)}{(y-1)(y+1)} ← cancel common factor (y - 1) on numerator/denominator

= \frac{2}{y+1}

6 0
3 years ago
What are the equations to Sum Of Cubes, Difference Of Cubes, and Difference Of Squares?
eduard

<u>Sum of Cubes:</u>

a³ + b³ = (a + b)(a² - ab + b²)

Example: x³ + 8 → a=x, b=2

                         = (x + 2)(x² - 2x + 4)

<u>Difference of Cubes:</u>

a³ - b³ = (a - b)(a² + ab + b²)

Example: x³ - 27 → a=x, b=3

                         = (x - 3)(x² + 3x + 9)

<u>Difference of Squares:</u>

a² - b² = (a - b)(a + b)

Example: x² - 16 → a=x, b=4

                           = (x - 4)(x + 4)

4 0
4 years ago
Find the equation of the line with slope = -2 and passing through (3,2). Write your equation in the form
horrorfan [7]

Answer:

Step-by-step explanation:

y - 2 = -2(x - 3)

y - 2 = -2x + 6

y = -2x + 8

3 0
4 years ago
Please help me with this. simplify and show all your work.
iren2701 [21]
Let's take this variable by variable. z to the power of 4 over z to the power of one would equal z to the power of 3. At this point, there is no longer a z variable in the denominator.
X to the power of 2 over x to the power of 1 would equal x. At this point there is also no x variable in the denominator.
Y to the power of 1 over y to the power of 2 would equal (1/y). At this point, there is no y in the NUMERATOR. 

Final Answer: \frac{ z^{3}x }{y}

5 0
3 years ago
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