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MissTica
3 years ago
10

Can someone explain how to do this

Mathematics
2 answers:
sdas [7]3 years ago
5 0
You begin by finding the measure of the angles knowing that all angles in a triangle equal 180.  Then you use tan 57=7/(line AC).  This value squared plus 7 squared will equal the length of the hypotenuse squared.
Cloud [144]3 years ago
4 0
I'm pretty sure its a^2+b^2=C^2

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Answer: Choice B) 128

Explanation:

We'll add up the given arc measures and then cut the result in half to get the angle formed by the intersecting chords (that subtend the arcs in question).

chord angle = (arc1+arc2)/2

x = (54+202)/2

x = 256/2

x = 128

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2 years ago
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Step-by-step explanation:

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X+y+z=51

y=2z
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subsitute those

x+2z+9+x=51
x+2(9+x)+9+x=51
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sub back

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y=2(15)
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3 years ago
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3 years ago
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