Nickles - dimes
0.05 x 75 - 0.10 x 25
$3.75 - $2.50
$1.25
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Answer:
Step-by-step explanation:
cot = cos/sin = x/y In order for cot to be negative, then the "x" and "y" are opposite signs (-x, +y) or (+x, -y). Which quadrants do these fall in?
(-x, +y) is in Quadrant 2
(+x, -y) is in Quadrant 4
Answer: 2, 4