Answer: £54.60
Step-by-step explanation:
7.80 x 7 = £54.60
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Explecit formula
hmm, seems to be a geometric sequence
so
an=a1+d(n-1)
d=common differnce
a1=first term
given
a1=firstterm=9.2
and the difference between each tierm is 1.8
an=9.1-1.8(n-1) is da equation
so 4th option
Step-by-step explanation:
5--1/5-1 0+3/5-1=-5/4
The inequality is

write 7 as 7b/b to have all the expressions in common denominator:






here b=1 is a root and b=0 is not in the domain of the expression, but it still has an effect in the sign of the expression.
the sign table of

is :
+++++++[0] --------[1] +++++
this means that for values of b to the left of 0 and to the right of 1, the expression is positive, and for values of b in (0, 1), the expression is negative.
that is

for b∈(0, 1)
Answer: (0, 1)
Answer:
3.8
Step-by-step explanation:
1.8 + 3.6 = 5.4
5.4 - 9.2 = 3.8