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Semmy [17]
3 years ago
9

Vertex and axis of symmetry f(x)=2x^2-16x-17 PLEASE HELP

Mathematics
1 answer:
Law Incorporation [45]3 years ago
8 0
The vertex is at (4, -49) and the axis of symmetry is at x= 4.

To find the vertex of this equation, use this method: ( \frac{-b}{2a})

a=2
b=-16

This will help get your x value and the axis of symmetry. To find the y value of the vertex, insert the x value, 4 to get your y value, -49.
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What is the degree form for 3n/4 radians?
yanalaym [24]

Answer:

135^\circ

Step-by-step explanation:

To convert radians to degrees, use the formula x^\circ=r\frac{180}{\pi} where r is the number of radians:

x^\circ=r\frac{180}{\pi}

x^\circ=(\frac{3\pi}{4})(\frac{180}{\pi})

x^\circ=\frac{540}{4}

x^\circ=135

Therefore, \frac{3\pi}{4} radians is 135^\circ

4 0
2 years ago
Can you explain the difference between regular and irregular polygons? How is finding the area different? Be prepared to give an
zalisa [80]

Answer:

 

Step-by-step explanation:

The difference between regular and irregular polygons:

Regular polygons

1. All sides and all the interior angles of the regular polygon are equal.

2. Since, all the interior angles are less than 180°, therefore they are convex in nature.

Irregular polygons:

1.Either the sides are not congruent, or the  interior angles are not congruent, or both the sides  and the interior angles are not congruent.

2. Since, one or more of the interior angles are greater than 180°, therefore they may be either concave or convex.

Finding the area for both regular and irregular polygons is different.

In case of regular polygon, it is equilateral and equiangular, we use a segment that joins the polygon’s center to the midpoint of any side and that is perpendicular to that side(APOTHEM) to find the area that is:

Area=\frac{1}{2}{\times}perimeter{\times}apothem.

But, in case of irregular polygons, finding the area is quite difficult unless we know the coordinates of the vertices as each side and angle can be different.

Examples:

A square is a regular polygon.

A scalene triangle is an irregular polygon.

5 0
4 years ago
Lara constructed angle POQ and then used a compass and straightedge to accurately construct line segment OS, as shown in the fig
Anton [14]
Measure of angle POQ is 60 degrees
4 0
4 years ago
Read 2 more answers
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Studentka2010 [4]

Answer:

-30n + 42

Step-by-step explanation:

6( -5n + 7)

-30n + 42

Hope this helps!

6 0
3 years ago
What does the histogram suggest about the length of 3/4 of an inch wood screws as printed on the box of 50 screws
svet-max [94.6K]

Answer:

The answer is "About half of the screws are written in the box within 0.01 cm in length".

Step-by-step explanation:

In this question some information is missing that is attachment of the image, which is attached.

In this question, there are several of the screws are in between 0.74 to 0.76 and its number is 28, that's why it is correct.

7 0
3 years ago
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