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3 years ago

Select the description of the graph created by the equation 3x2 - 6x + 4y - 9 = 0.

Mathematics

2 answers:

max2010maxim [7]3 years ago

5 0

Answer:

Step-by-step explanation:

Parabola with a vertex at (1, 3) opening downward.

arsen [322]3 years ago

3 0

Answer:

C. Parabola with a vertex at (1, 3) opening downward.

Step-by-step explanation:

I got it right on edg21

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A professional singer charged $1000 an hour. Her rate increase by 50% after midnight. If she performs one night from 8:30pm to 1

otez555 [7]

First we need to find out what her increase is so 50% of 1000 is is 500 so from 12am to 1am she made
1500
from 830 to 12 am gives us 4 1/2 hours so she got paid 4500 for those hours adding on the past 12am and we get

6000 as the total amount she made

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3 years ago

What is 7÷ 1 2 - 5 ?

RUDIKE [14]

Answer:

4.4166666667 or 4.417

Step-by-step explanation:

7÷12-5=4.4166666667 or 4.417

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3 years ago

What is the equation of the line in slope-intercept form

andreev551 [17]

Answer:

y = -3/5x - 2

6 0

3 years ago

22. What is an equation of the parabola with vertex at the origin and focus (−4, 0)?

miv72 [106K]

The correct answer for the question shown above is the second option (Option b), and the option cwhich is:

b) x = -1/16y^2
c) y=-1/16x^2

The explanation is shown below:

The focus of a parabola is (h,k+1/4a), then, you have:

h,k= (0,0)
1/4a=1/4(-1/16)

Then, you obtain:

1/4a=-4

Therefore, the focus of the equation of the parabola x = -1/16y^2 and the parabola y=-1/16x^2 <span>is F(0-4)
</span>
So, as you can see, the correct answer is the options mentioned before, the option b and the option c.

7 0

3 years ago

Chosen answer is wrong, please help!

Leviafan [203]

Answer:

Step-by-step explanation:

So we have the two functions:

$f(x)=2x+5\text{ and } g(x)=x-8$

And we want to find (f/g)(x).

This is the same as:

$(\frac{f}{g})(x)=\frac{f(x)}{g(x)}$

So, substitute (2x+5) for f(x) and (x-8) for g(x). So:

$=\frac{2x+5}{x-8}$

Now, we want to find the domain.

Note that this is a rational function. The domain of a rational function is always all real numbers <em>except</em> when the denominator equals 0. This is because, remember, you can't divide by 0!

So, to find the domain restrictions, set the denominator equal to 0 and solve for x. So:

$x-8=0$

Solve for x. Add 8 to both sides:

$x\neq8$

So, our domain is all real numbers except for 8. We can check this, when x is 8, our function is 21/0, which is undefined.

Therefore, our answer is A.

And we're done!

Edit: Typo

3 0

4 years ago

Read 2 more answers