20 carnations
divide 28 roses by 7 to find one part of the ratio
= 4 ← 1 part of ratio
5 parts = 5 × 4 = 20 ← number of carnations
I’m sure it’s 141° since it’s two parallel lines
Answer: 141°
V(t) = dy/dt = 40 - 32t
ai). average velocity = (v(0.5) - v(0))/(0.5 - 0) = ((40 - 32(0.5)) - (40 - 32(0)))/0.5 = (40 - 16 - 40)/0.5 = -16/0.5 = -32m / s
ii). average velocity = (v(0.1) - v(0))/(0.1 - 0) = ((40 - 32(0.1)) - (40 - 32(0)))/0.1 = (40 - 3.2 - 40)/0.1 = -3.2/0.1 = -32m / s
iii). average velocity = (v(0.05) - v(0))/(0.05 - 0) = ((40 - 32(0.05)) - (40 - 32(0)))/0.05 = (40 - 1.6 - 40)/0.05 = -1.6/0.05 = -32m / s
45 x 5 = 225 minutes per week
225 x 36 = 8,100 minutes per school year
