In both cases, we have cooling. We can add together the 2 functions describing this cooling: z(x) = 0.5x - 9 - [-x-2] = 0.5x - 9 + x + 2, or
z(x) = 1.5x - 7
Provided that this is correct, all we have to do now is to subst. 5 for x:
z(5) = 1.5(5) - 7 = 7.5 - 7 = 0.5 (answer)
Answer:
6.4
Step-by-step explanation:
A(3, 9)
B(8, 5)
Answer:
V=160cm^3
Step-by-step explanation:
V=lhw
V=5•4•8
V=20•8
V=160cm^3
^-^ your welcome
Answer:
4
Step-by-step explanation:
x + 2y = 2 + 2(1)
= 2 + 2
= 4
