3 years ago

Consider the proposition

Mathematics

2 answers:

ddd [48]3 years ago

6 0

your answer is C

Leokris [45]3 years ago

6 0

Answer:

Step-by-step explanation:

2x+5=13

2x+5-5=13-5

2x=8

2x/2=8/2

X=4

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2 years ago

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Step-by-step explanation:

By 30°-60°-90° triangle theorem:

$15 = \frac{1}{2} \times c.. (side\:opposite \: to \:30°)\\ c = 15 \times 2 \\ \\ \huge \red{ \boxed{c = 30 \: m}} \\ \\ b = \frac{ \sqrt{3} }{2} \times c.. (side\:opposite \: to \:60°) \\ \\ b = \frac{ \sqrt{3} }{2} \times 30 \\ \\ \huge \purple{ \boxed{b = 15 \sqrt{3} \: m}}$