Answer:
y=0
Step-by-step explanation:
Rewrite Evaluate Powers:
3
Calculate:

Solve using substitution:

Solve the equation for t:
t=-3
t=1
Substitute back to t=3^y
3^y=-3
3^y=1
y∉R

y=0
Answer:
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Step-by-step explanation:
B because french and Spanish are alternate soo they grouped and spanish goes second and begin with french book
Answer:
a)
, b)
, c)
,
.
Step-by-step explanation:
The volume and the surface area of the sphere are, respectively:


a) The volume of the sphere is:


b) The surface area of the sphere is:


c) The total differentials for volume and surface area of the sphere are, respectively:






Relative errors are presented hereafter:





