3 years ago

Pleaseeeee help meeee……………

Mathematics

1 answer:

hram777 [196]3 years ago

5 0

Answer:

104°

Step-by-step explanation:

In order to find out the value of x we must figure out the other angles. The line on the extended side adds up to 180 degrees. Use that information to find the other angle.

180 - 128 = 52

The one angle is 52. Then, we know that a triangles angles always add up to 180 degrees as well. So create an equation:

180 - 52 - 24 = 104

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What is the length of the radius of a circle with a center at 2 – i and a point on the circle at 8 + 7i?

Vesnalui [34]

Answer:

Step-by-step explanation:

The radius is the magnitude of the complex number that is the difference between any point on the circle and the center point. A suitable calculator can tell you that magnitude:

║(8+7i) - (2-i)║ = √((8-2)² +(7-(-1))²) = √(36+64) = √100 = 10