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2 years ago

How do you graph 3x= -135

Mathematics

2 answers:

statuscvo [17]2 years ago

7 0

Answer:

You would graph a vertical line at (-49, 0)

Step-by-step explanation:

3x = -135

Divide both sides by 3

x = -45

You would graph a vertical line at (-49, 0)

P.S., that system acts strange sometimes so be sure to only do one square up once you press -45. :)

myrzilka [38]2 years ago

3 0

Answer:

see below

Step-by-step explanation:

first isolate x

3x = -135

divide both sides by 3

3x/3 = x

-135/3 = -45

x = -45

we can then graph it

x is gonna be equal to -45

so draw a point on the x intercept at -45 and draw a vertical line going up and down

it should look like the graph shown below

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2 years ago

The sum of a number and its square is 182. Find the number.

Mars2501 [29]

Answer:

13 and -14 satisfy this condition

Step-by-step explanation:

Let's represent that number as x

and the square of x is x^2

So,

x + x^2 = 182

Subtract 182 from both sides

x + x^2 - 182 = 182 - 182

x + x^2 - 182 = 0

rearrange the quadratic equation

x^2 + x -182 = 0

let's use the quadratic formula

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$\frac{-1+\sqrt{1+728} }{2}$ or $\frac{-1-\sqrt{1+728} }{2}$

$\frac{-1+\sqrt{729} }{2}$ or $\frac{-1-\sqrt{729} }{2}$

$\frac{-1+{27} }{2}$ or $\frac{-1-{27} }{2}$

$\frac{26}{2}$ or $\frac{-28}{2}$

13 or - 14

Lets check

13 + 13^2 = 13 + 169

= 182

Also,

-14 + (-14^2) = -14 + 196

= 182

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Step-by-step explanation:

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