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2 years ago

Help please!! thank you

Mathematics

1 answer:

irina1246 [14]2 years ago

4 0

Answer:

28h + 54=379

Step-by-step explanation:

"28h"=hour of pages she could read.

"+54" because she already have read it, so add it to the equation.

"=379" total of the pages in book.

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A,B,C,D are points on the circumference of a circle centre o

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The points A,B,C,D make up the circumference of the circle

The measure of angle BAD is 65 degrees

<h3>How to determine the measure of angle BAD?</h3>

The measure of angle ODB is given as:

ODB = 25 degrees

Considering the triangle BOD, we have:

ODB + BOD + DBO = 180

Where:

ODB = DBO = 25

So, we have:

25 + BOD + 25 = 180

Solve for BOD

BOD = 130 degrees

The angle at an arc is twice the angle at the circumference.

So, we have:

BOD = 2 * BAD

Substitute 130 for BOD

130 = 2 * BAD

Divide both sides by 2

65 = BAD

Hence, the measure of angle BAD is 65 degrees