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3 years ago

Use the slope-intercept method to graph the equation y=2x-4. Is (3,2) a solution?

Mathematics

2 answers:

Andru [333]3 years ago

8 0

Yes, (3, 2) is a solution to y = 2x - 4. (:

jeka57 [31]3 years ago

3 0

The ordered pair (3,2) is a solution.
To graph the function: first plot the y-intercept at -4. Next from the y-intercept, count up 2 units and then right one unit and plot a point, continue to do this until you have several points plotted (at least 4). Next using a straight-edge, draw a line through the points.

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45 is what percent of 150

inn [45]

Divide 45 by 150 then multiply by 100:

45 / 150 = 0.3

0.3 x 100 = 30%

The answer is 30%

7 0

3 years ago

Read 2 more answers

If 3x - 2y = 9 , 27x³- 8y³= 1377 , prove that xy = 4 plzz answer this question...

solniwko [45]

Step-by-step explanation:

Here we are given that , the Value of

$3x - 2y = 9$
$27x^3 - 8y^3 = 1377$

And we need to find the prove that ,

$xy = 4$

We know a identity as ,

$(a-b)^3 = a^3-b^3-3ab(a-b)$

On cubing both sides of the given equation,

$(3x-2y)^3 = 9^3$

Simplify and then substitute ,

$27x^3-8y^3 -3(3x)(2y)(3x-2y ) = 729$

$1377 - 18xy (9) = 729$

$162xy = 1377-729$

$xy =\dfrac{648}{162}$

$xy = 4$

Hence Proved !

8 0

3 years ago

Factor the following polynomial. 98x3 – 18x

grigory [225]

Answer:

2x(7x - 3)(7x +3)

Step-by-step explanation:

Find common factors between the 2 numbers:

98x^3 - 18x

2x(49x^2 - 9)

now find what numbers multiplied together is 49, and find what numbers added together equals 0 and the product is 3, 7 times 7 is 49 and 3(-3) = 9 while 3 - 3 = 0 so:

2x(7x - 3)(7x +3)

3 0

3 years ago

Read 2 more answers

<img src="https://tex.z-dn.net/?f=4%20%5Ctimes%208%20%5E%7B2x%20%2B%201%3F%7D%20%20%3D%2032%20%5E%7Bx%20%2B%202%7D%20" id="TexFo

svet-max [94.6K]

Answer:

x = 5

Step-by-step explanation:

__________________________________________________________

FACTS TO KNOW BEFORE SOLVING :-

$a^x \times a^y = a^{x+y}$

In an equation , if the bases are same in both L.H.S. & R.H.S. then , the power of the bases on both the sides of equation should be equal. For e.g. : $a^x = a^y$ ⇒ $x = y$ [∵ Bases are equal on both the sides]