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boyakko [2]
3 years ago
10

Describe how to construct an angle bisector with a compass and starightedge.

Mathematics
1 answer:
Nina [5.8K]3 years ago
6 0

Here is how to bisect the angle <u>B A C</u>: Place the point of the compass on A, and swing an arc <u>E D</u>. Then, with D as center and <u>D E</u> as radius, draw an arc. Keeping the same radius and with E as center, draw an arc that will intersect the first; call that point of intersection F, and draw <u>A F</u>.

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What is the equation of the line in the graph
iren [92.7K]

Always, ALWAYS remeber this format: y = mx + b

In this equation, 'm' is the slope, and 'b' is the y-intercept

When you're trying to find a slope, remember that the equation is \frac{rise}{run}

When finding the rise and run, look at two points that are on the graph AND on the line as well. Essentially, make sure the points you're using are integers.

In this, case, the rise is -3, and the run is 2. This means that the slope is  \frac{-3}{2}

Now we have the first part of our equation:

y = - \frac{3}{2} + b

But wait! How do we find b?

Sometimes you have to input x in order to find it, but only when you're not supplied with a graph. In this case, all you have to do is look!

The point of the line that is on the y-axis is called the y-intercept.

In this graph, the y-intercept is -1

Now we have our complete equation!

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Good luck!

3 0
3 years ago
Solve the quadratic equation 3x^2 - 9x + 1 = 0 Give answer to 3 significant figures
Orlov [11]

Answer:

Either, (9+√69)/6 or (9-√69)/6

Step wise:

3x²-9x+1=0-------------------(i)

comparing equation onw with (ax²+bx+c=0), we get,

a=3, b=-9, c=1

now,

using Quadratic Formula,

(-b±√b²-4ac)/2a=x

{-(-9)±√(-9)²-4.3.1}/2.3=x

(9±√81-12)/6=x

(9±√69)/6=x

Taking +(ve) sign                   Taking -(ve) sign

(9+√69)/6=0                           (9-√69)/6=0

∴(9+√69)/6=0                         ∴(9-√69)/6=0

[∵They cannot be further solved]

6 0
3 years ago
Consider these numbers, ordered from least to greatest. Negative 1.8, negative 1 and one-fourth, negative 0.2, blank, one-half,
netineya [11]

Answer:

All

Step-by-step explanation:

7 1
3 years ago
Read 3 more answers
What’s the solution for x-0= 0
Dominik [7]
I’m pretty sure it’s 0
7 0
2 years ago
F the width of a rectangle is x 2 and the length is twice as long, what is the area?
iren2701 [21]
I hope this helps you

4 0
2 years ago
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