3 years ago

Suppose the bank installs nine alarms. What is the expected number of alarms that will detect a burglar?

Mathematics

1 answer:

Harrizon [31]3 years ago

3 0

The answer is 6 because

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3 years ago

Find the length of each arc. Use the exact answer

xenn [34]

Answer:

D) 16π/3 ft

Step-by-step explanation:

We solve the above question using the Arc length formula when our central angle is in degrees

The formula is given as:

Arc length = 2πr × θ /360

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θ = Central angle in degrees = 240°

Hence,

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3 years ago

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faust18 [17]

Answer:

The answer is B --> $\frac{x^{2} }{3x^{2} -1}$

How I got that:

These are really easy, you're simply looking for numbers that you can factor down. Like here:

I took:

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and saw that I could factor out 4 from the denominator:

$\frac{4x^{2} }{4(3x^{2} -1)}$

and then I canceled out the common factor (4 because its on both sides):

$\frac{x^{2} }{3x^{2} -1}$

And there ya go!

~That's All Folks~

-Siascon

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bija089 [108]

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The answer is for this question is False

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