An artist used silver wire to make a square that has a perimeter of 40 inches. She then used copper wire to make the largest cir
cle that could fit in the square as, shown below.
What is the circumference of the copper circle? Use 3.14 to represent pi.
A. 3.14 inches
B. 31.4 inches
C. 15.7 inches
D. 78.5 inches
What is the circumference of the copper circle? Use 3.14 to represent pi.
A. 3.14 inches
B. 31.4 inches
C. 15.7 inches
D. 78.5 inches
1 answer:
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Answer:
Step-by-step explanation:
The formula you wrote has the fraction the other way around. You can find that the range of a projectile is in reality approximated by the equation , where we will use ft for distances.
From the given equation we have then , which means
since the arcsin is the inverse function of the sin.
Since we have x = 170 ft and v = 85 ft/s, we can substitute these values from the equation written, and we will have , and from now on we have just to use a calculator, obtaining