The reduction expressed as a fraction of the original price is
80.00/249.99 ≈ 0.3200128 = 32.00128/100 = 32.00128%
The reduction in price was about 32%.
Answer: Human calculator says 21 x 21 = 441!
Good Luck!
Answer:
there is no solution for (0, 30°)
Step-by-step explanation:
six(x) = cos(x)
sin(x) - cos(x) = 0
(sin(x) - cos(x))^2 = 0
sin(t)^2 + cos(x)^2 - 2sin(x)cos(x) = 0
1 - sin(2x) = 0
sin(2x) = 1
2x = π/2 + 2πk -> k - any integer number
x = π/4 + πk
the smallest positive solution is π/4 = 45°. That means for range (0, 30°)
there is no solution
After 3 seconds it's been descending for 3 seconds at a rate of 2 feet per second. So it's gone down 6 feet, and now it's at a height of 67. So it started off at 73.
<span>Its height after x seconds is 73 - 2x. (73 to start off with, minus 2 feet per second that's passed.) </span>
<span>After 8 seconds it will be at a height of 73 - 2*8 = 73 - 16 = 57.</span>
