ok so i think it is 16 meters longs because 10 - 8 = 2 which means the actual thing was bigger than its shadow so 14 +2 = 16 and to double check if it was right 16 - 14 = 2
Answer:
15.71m
Step-by-step explanation:
circumference of a circle = 2πr
where r = 2.5m
where π = 3.142
we have,
2*3.142*2.5 = 15.71m
therefore the circumference of a circle with a radius 2.5m = 15.71 m
Answer: I gave the evaluate answer and the differentiate w.r.t x answer. Sorry for caps.
Step-by-step explanation: EVALUATE x4n−3
DIFFERENTIATE W.R.T. X (4n−3)x4(n−1)
Answer:
Humans can detect sounds in a frequency range from about 20 Hz to 20 kHz.
(Human infants can actually hear frequencies slightly higher than 20 kHz, but lose some high-frequency sensitivity as they mature; the upper limit in average adults is often closer to 15–17 kHz.)
It is: 91/200, because 45.5/100 is 45.5% as a fraction, but you have to make both the top a whole number, so you can multiply 45.5 by 2 to get 91, then also times the bottom by 2, and you get 200!
