The explicit formula for arithmetic sequence is:
an=a+(n-1)d
where:
a=first term
d=common difference
given:
a3=22
a(17)=-20
substituting this in our equation we get:
22=a+(3-1)d
22=a+2d
a=22-2d........i
also:
-20=a+(17-1)d
-20=a+16d.....ii
but substituting i in ii we get:
-20=22-2d+16d
-20-22=14d
-42=14d
d=-3
but:
a=22-2d
a=22-2(-3)
a=28
thus the formula will be:
an=28-3(n-1)
thus the first term will be 28
the 2nd term will be:
a2=28-3(2-1)
a2=25
the 3rd term will be:
a3=28-3(3-1)
a3=28-6
a3=22
a4=28-3(4-1)
a4=28-9
a4=15
a5=28-3(5-1)
a5=28-3(4)
a5=28-12
a5=15
Answer:
each student gets 3 drinks, make sure the lemon and lime are in different groupings
Step-by-step explanation:
Gross Income of $54,300, Adjustments of $2460, 2 Exemptions of $16,400, and Deductions of $16,500?
Taxable amount = $54,300 - ( $2460 + $16,400 + $16,500 ) = 84,740.
I don't have the list of the tax bracket. The tax bracket of 2016 and 2017 are also different. Just get the tax bracket and multiply the taxable amount.
You could use long division ifyou know your multiplication you can do it but an example you do these steps
1.divide
2.multiply
3.subtract
4.do it again and do the steps all over again
