djdhdhusidhdushdhd
Carryonlearning <3
The number of subsets of a set is 256, and the number of subsets of a set is 128. If | ∪ | = 2 × | ∩ |, then what is the value of | ∩ |? and what will be the number of subsets of the set ∩ ?
The answer is the last choice 2 1/2
Answer:
a).
m
b).
m³
c).
N²
Step-by-step explanation:
In this question we have to convert each option into SI units.
a).
mm
=
m
=
m
b). (348 mm)³
=
m³
=
m³
=
m³
c).
N²
=
N²
= 
=
N²
Answer: In 5 years it will be worth £455
Step-by-step explanation:
Step 1
Given
The cost of the T.V. for Colin = £530.
The rate of depreciation per year = 3%
Time/ period = 5 years
Formulae to be used
F = P X (1 - r) ^ n
where
F = the future value after depreciation
P = the present value.
r =the interest rate per time period
n = the time/ periods
Step 2--- SOLVING
F = P X (1- r) ^ n
F= 530 x (1-0.03) ^ 5
=530 x 0.858734
=£455.129
Rounding up to the nearest penny where appropriate = £455