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andriy [413]
3 years ago
5

Please solve a,b and c

Mathematics
1 answer:
Tom [10]3 years ago
5 0

a.\\P=2x+2\pi r\\\\b.\\2x+2\pi r=P\ \ \ |-2\pi r\\\\2x=P-2\pi r\ \ \ |:2\\\\x=\dfrac{P}{2}-\pi r\\\\c.\\P=660\ ft,\ r=50\ ft\\\\x=\dfrac{660}{2}-50\pi=(330-50\pi)\ ft\approx330-50\cdot3.14=330-157=173\ ft

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Answer:

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Step-by-step explanation:

1. base of triangle: it is an equilateral triangle, so any side of the triangle you take is the base, (usually the largest side of the triangle is the base)

so that would be => 10 inches,

2. a property of an equilateral triangle is that , the median of the triangle coincides with the height of the triangle,

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3 years ago
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2 years ago
a test has 20 multiple-choice questions with 5 choices each, followed by 35 true/false questions. if a student guesses on each q
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The same thing goes with the true/false questions. There are 2 choices for each true/false question, and there are 35 of those. 35×2 is 70. There are 70 ways to answer on the true/false questions.

Now combine the number of choices on the first part and the second part; 100+70 is 170.

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3 0
3 years ago
Read 2 more answers
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3 years ago
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