13 divided by 2 is 6.5 and 31 divide by 2 is 15.5 I hope this helped
Answer:
0.25.
Step-by-step explanation:
sin 30 = 0.5
So it is 2 * (0.5)^3
= 2 * 0.125
= 0.25.
Prime numbers are those with only two factors: one and themselves. The prime numbers between 21 and 30 are 23 and 29.
Answer:
The amplitude of the sinusoidal function is 3
Step-by-step explanation:

Newton's cooling model is ΔT = ΔTo * e ^ (-k t)
ΔTo = 200°F - 70°F = 130°F
k = 0.6
t = 2 hours
=> ΔT = 130 * e ^ (-0.6 t) = 130 * e^ (-0.6 * 2) = 130 * e ^ (-1.2)
ΔT = 39.15°F
ΔT = T - Tenvironment => T = ΔT + Tenvironment = 39.15°F + 70°F = 109.15°F ≈ 109 °F.
Answer: T = 109 °F