A box is a cuboid with dimensions 26 cm by 15 cm by 20 cm all measured to the nearest centimetre.
Disc cases are cuboids which measure 1.6 cm by 14.2 cm by 19.3 cm all
measured to the nearest millimetre.
If the disc cases are stacked as shown, show that it may not be possible
for 16 cases to fit in the box.
+
19.3 cm
20 cm
15 cm 14.2 cm
1.6 cm
26 cm

If cos(2x) = tan^2(y), show that cos(2y) = tan^2(x).

The boiling point of water at an elevation of 0 feet is 212 degrees fahrenheit (°f). for every 1,000 feet of increase in elevation, the boiling point of water decreases by about 2°f. which of the following represents this relationship if b is the boiling point of water at an elevation of e thousand feet? a) e = 2b - 212 b) b = 2e - 212 c) e = -2b + 212 d) b = -2e + 212

The zoo collects $9.60 for every 24 tickets sold. how much will be collected for 400 tickets?