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4 years ago

PLEASE HELP 20 POINTS!

Mathematics

1 answer:

butalik [34]4 years ago

6 0

Hello!

The radius of a circle is a line from the center of the circle to any point on the circumference of the circle. Also, all radii in a circle will be the same length.

Since the distance from A to B is 5 inches, and line AB is a radius, line AD is also a radius and its distance must be 5 inches.

Therefore, the distance from line A to B is 5 inches.

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Simplify - 1/2 - (-3/4)

Elanso [62]

Explanation

Step 1

break the parenthesis:

to do that, multiply the signs,

$\begin{gathered} -\cdot-=\text{ +} \\ so \end{gathered}$ $\begin{gathered} -\frac{1}{2}-(-\frac{3}{4}) \\ -\frac{1}{2}-(-\frac{3}{4})=-\frac{1}{2}+\frac{3}{4} \\ -\frac{1}{2}+\frac{3}{4} \end{gathered}$

Step 2

now, add / subtract the fractions:

remember.

$\frac{a}{b}\pm\frac{c}{d}=\frac{ad\pm bc}{bd}$

$\begin{gathered} -\frac{1}{2}+\frac{3}{4} \\ \frac{3}{4}-\frac{1}{2}=\frac{3\cdot2-1\cdot4}{4\cdot2}=\frac{6-4}{8}=\frac{2}{8}=\frac{1}{4} \\ -\frac{1}{2}+\frac{3}{4}=\frac{1}{4} \end{gathered}$

therefore,

$\begin{gathered} -\frac{1}{2}-(-\frac{3}{4})=\frac{1}{4} \\ \end{gathered}$

so,the answer is

$\frac{1}{4}$

I hope this helps you

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1 year ago

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Daniel [21]

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Step-by-step explanation:

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