1 year ago

Help please i need this done!!

Mathematics

1 answer:

Juliette [100K]1 year ago

8 0

Answer:

True, True, True, False

Step-by-step explanation:

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Find m angle d for m angle b = 65<br> The figure is not drawn to scale

Aleksandr [31]

Answer:

Denote O as center of circle, draw OA, OC.

As property of tangent line from outside of circle (angle OAD = angle OCD = 90 deg):

=> AOC + D = 180

Moreover, angle AOC = 2 x angle B = 2 x 65 = 130

=> D = 180 - 130 = 50 deg

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pishuonlain [190]

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Our hearts beat approximately 70 times per minute. Express in scientific notation how many times the heart beats over a lifetime

earnstyle [38]

Answer:

2.69 x $10^{9}$

Step-by-step explanation:

We are given the heart's speed - 70 bpm

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We multiply the heart's bpm with 73 years worth of minutes

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