Answer:
Step-by-step explanation:
Required
Find x
Remove the inner brackets
Remove the square bracket
Divide both sides by -3
It is a geometric sequence
an=a1(r)^(n-1)
a1=first term
r=common ratio
n=which term
first term is 1
common ratio is 5
an=1(5)^(n-1)
that is the equatin/formulf for the nth term
if you want a summation formula of the sequence to the nth term
Sn=
in this case
Sn=
or
Sn=
so in this case
up to 5th term
S5=
S5=
S5=
S5=781
anyway
is the nth term
and
Sn=
is the summation up to the nth term
Answer:
8.760 x 10^3
Step-by-step explanation:
There are 8760 hours in 1 year. So, you can convert this to scientific notation by moving the decimal from 8760 three times to the left: 8760. → 8.760 And since it was moved three times, put an exponent of 3 to the 10: 10^3 So, you get 8.760 x 10^3 hours in a year.
Hope this helps! :)
To sub
solve for 1 variable
solve for x
minus 6y both sides on second equotn
x=18-6y
sub 18-6y for x in other equation
2(18-6y)-3y=-24
36-12y-3y=-24
36-15y=-24
minus 36 oth sides
-15y=-60
divide -15 both sides
y=4
sub back
x=18-6y
x=18-4(4)
x=18-16
x=2
x=2
y=4
(2,4)
Answer:
Answer is F
Step-by-step explanation: