3 years ago

Which of the following sets of numbers could be the lengths of the sides of a triangle?

1 answer:

7 0

B. 3ft, 4ft, 5ft

Pythagoras' Theorem where the square of the two smaller sides added together equals the square of the hypotenuse. If the two smaller sides are 3 and 4 then the hypotenuse is always going to be 5

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in sound and harmonics, the frequency of a vibrating string varies inversely to its length. A guitar string 20 inches long vibra

zmey [24]

20 inches is 400
10 inches is 200
5 iches is 100

So 20+10+5=35
Which means 400+200+100= 700

So the frequency of a 35 inch string is 700 cycles per second

5 0

2 years ago

3601-589= What strategy did you use?

Anton [14]

Answer:

3601

-589

———-

359(11)

-589

———-

3012

Step-by-step explanation:

3 0

2 years ago

If Angela has $500 to invest at 2.5% per annum compounded quarterly, how long will it be

11Alexandr11 [23.1K]

N = number of compounding periods
Years = log (total / principal) / n * log (1 + rate / n)
Years = log (750 / 500) / 4 * log (1 + .025/n)
Years = log (1.5) / 4 * log (1.00625) 
 Years = 0.17609125906 / 4 * 0.0027058933759
Years = 0.17609125906 / 0.0108235735 
Years = 16.2692348382 

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