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Anuta_ua [19.1K]
3 years ago
14

Help math quiz

Mathematics
1 answer:
tiny-mole [99]3 years ago
4 0

Answer:all real numbers greater than or equal to -1

Step-by-step explanation:

In order to solve this problem we need to know the vertex and the direction its pointing.

First we expand,

x^2-6x+8

To find the x value of the vertex we use this formula (-b/2a).

-(-6)/2(1) = 3

Now we plug 3 in the equation to get the y value,

(3)^2 - 6(3) + 8 = 9 - 18 + 8 = -1

The vertex is (3,-1)

We know the graph points up because x^2 is positive

The vertex is the lowest point, so we now know that -1 is the starting range and if the graph is pointing up, that means all values greater than -1.

This leads to our answer all real numbers greater than or equal to -1.

Step-by-step explanation:

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Hi can someone please answer this question? <br><br> Thank you :)
Archy [21]

Answer:

\frac{7}{8}

Step-by-step explanation:

Remember that slope, or in this case pitch, is equal to rise divided by run. In other words:

m=\frac{rise}{run}

where m is the slope.

From looking at the image, we can see that the rise 21 feet and the run is 24 feet. By plugging this information into the equation, we get:

m=\frac{21}{24}=\frac{7}{8}

So the slope, or pitch, of the roof id 7/8.

I hope you find my answer and explanation to be helpful. Happy studying.

7 0
3 years ago
12 + 2x - x = 9x + 6 <br><br><br> I need help!!
stich3 [128]

Answer:

3/4

Step-by-step explanation:

Start by simplifying (2x-x) to just (x)

The equation should now look like this: 12+x=9x-6

Now subtract the x on the left side of the equation on both sides.

The equation should now look like this: 12=8x-6

Now add 6 on both sides

The equation should now look like this: 6=8x

To get x by itself you must divide 8 on both sides

The equation should now look like this 6/8=x

Don't forget to simplify your fractions!

6/8 simplified is 3/4, giving you the answer 3/4

3 0
3 years ago
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Mashutka [201]

Answer:

3

Step-by-step explanation:

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Brainliest is waiting
lina2011 [118]

I think it’s 70 degrees

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Answer:

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Step-by-step explanation:

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3 years ago
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