How to find the measure of an angle?

1 answer:

5 0

Answer:The best way to measure an angle is to use a protractor. To do this, you'll start by lining up one ray along the 0-degree line on the protractor. Then, line up the vertex with the midpoint of the protractor. Follow the second ray to determine the angle's measurement to the nearest degree.

Step-by-step explanation:

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What is the equation of a line that has a slope of -3 and passes through the point (1,2)?

Ede4ka [16]

Answer:

C) y=-3x+5

Step-by-step explanation:

y-y1=m(x-x1)

y-2=-3(x-1)

y=-3x+3+2

y=-3x+5

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3 years ago

Which of the following equations passes through the point (0, -6) and is parallel to

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The steps to derive the quadratic formula are shown below:

alukav5142 [94]

Answer:

(c) x plus b over 2 times a equals plus or minus the square root of the quantity b squared minus 4 times a times c all over the square root of 4 times a squared

Step-by-step explanation:

The next step is to take the square root of both sides of the equation. It can help to show the intermediate steps.

<h3>Result so far</h3>

The last step shown in the derivation so far is ...

$x^2+\dfrac{b}{a}x+\dfrac{b^2}{4a^2}=-\dfrac{4ac}{4a^2}+\dfrac{b^2}{4a^2}$

The left side of the above expression can be written as a square, and the right side can be written over one denominator. Then the square root is taken as the next step.

$\left(x+\dfrac{b}{2a}\right)^2=\dfrac{b^2-4ac}{4a^2}\\\\\sqrt{\left(x+\dfrac{b}{2a}\right)^2}=\sqrt{\dfrac{b^2-4ac}{4a^2}}\\\\\boxed{x+\dfrac{b}{2a}=\pm\dfrac{\sqrt{b^2-4ac}}{\sqrt{4a^2}}}\qquad\text{"next step"}$