Answer:
see explanation
Step-by-step explanation:
given that r varies jointly with x and y then the equation relating them is
r = kxy ← k is the constant of variation
To find k use the condition r = 15 when x = 3 and y = 4
k = = = 1.25
r = 1.25xy ← equation of variation
When x = 16 and y = 1.25, then
r = 1.25 × 16 × 1.25 = 25
No, remember raidens is a ratio of the circumstance, there are 2 pi raidens in one complete revolution in a circle, that equals approximately 6, so your just under one revolution with raidens, but more than 3pi/2 raidens, the sign is negative so that means you are traveling in a clockwise rotation about the origins, therefore due to the sinsodial properties of the circle you are the first quadrant, which is between 0 and pi/2.
Volume is the amount of space an object takes up. So, the volume of the cube will become greater if you elongate the edge because it will take up more space