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IrinaVladis [17]

2 years ago

12

the graph shows the equation x^2+y^2=5 use the slider for a to move the vertical line on the graph based on the vertical line te

st is this equation a function why or why not

1 answer:

SSSSS [86.1K]2 years ago

4 0

Answer:

Not a function.

Step-by-step explanation:

The vertical line touches the graph at more than one point at once.

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IrinaK [193]

$\frac{3x - 2}{x^{2} - 2x - 3} - \frac{1}{x - 3} = \frac{3x -2}{(x + 1)(x - 3)} - \frac{1}{x - 3} = \frac{3x - 2}{(x + 1)(x - 3)} - \frac{1(x + 1)}{(x + 1)(x - 3)} = \frac{3x - 2}{(x + 1)(x - 3)} - \frac{x + 1}{(x + 1)(x - 3)} = \frac{2x - 3}{(x + 1)(x - 3)}$

5 0

3 years ago

One number is four times another number and their difference is 24. find the number.

Flura [38]

8 and 32.

8 times 4 = 32
32 - 8 = 24

4x - x = 24.
^ ^
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3 0

3 years ago

HELPPP i need some help solving this out please explain

Eva8 [605]

2x + 2x + x = 180°
5x = 180°
x = 36° (C)

8 0

3 years ago

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Adam rides his bike from his home to the school's bike lot at point F each day. Assuming he takes the same route home, how far d

Wewaii [24]

I'm saying the answer is D.

7 0

3 years ago

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Solve x2 - 8x - 9 = 0. Rewrite the equation so that it is of the form x2 + bx = c.

barxatty [35]

Answer:

x=9,-1 and $x^2+(-8)x=9$

Explanation:

we have been given with the quadratic equation $x^2-8x-9$

we compare the given quadratic equation with general quadratic equation

general quadratic is $ax^2+bx+c=0$

from given quadratic equation a=1,b= -8,c= -9

substituting these values in the formula for discriminant $D=b^{2}-4ac$

$D=(-8)^2-4(1)(-9)=100$

Now, to find the value of x

Formula is $x=\frac{-b\pm\sqrt{D}}{2a}$

Now, substituting the values we will get

$x=\frac{-(-8)\pm\sqrt{100}} {2}= \frac{8\pm10}{2}=9,-1$

And rewritting the given equation by shifting 9 to right hand side of the given equation and taking minus inside the bracket so as to convert it in the form of

$x^2+bx=c$

4 0

3 years ago

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