3 years ago

Shannon says,"My apartment is a prime number." Which could be Shannon's apartment number? A 115 B 273 C 317 D414

Mathematics

2 answers:

andreev551 [17]3 years ago

8 0

C 317 is the Prime Number

g100num [7]3 years ago

3 0

The answer is C. Since 414 is an even number, it is divisible by 2. Since 115 ends in 5, it is divisible by 5. And 273 is divisible by 3 (if you add all the digits and that number is divisible by 3, so it the originals. 2+7+3=12 12/3=4)

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The value pie/2 is a solution for the equation 2sin^2x-sinx-1=0 true or false

Rasek [7]

Answer:

Yes, $\frac{\pi }{2}$ is a solution

Step-by-step explanation:

Recall that $sin(\frac{\pi }{2})=1$ . By replacing $\frac{\pi }{2}$ in the given trigonometric equation, we get 0 (zero) as a result, so this value is a solution: