1 minute and 20 seconds as a decimal = 1.333
60 minutes are in an hour
60/1.333 = 45
He is driving 45 miles per hour.
Y=65+40x, i believe this is it im not to sure
Answer:
3 - 2a > 7
-2a > 4
We will divide both sides by negative, so we must change the direction of the inequality :)
a < -2
Hope this helps!
Y = |x| – 9.
Anything added or subtracted outside of the original equation moves it (likewise) up or down that amount of units.
Answer: 3n+1
(no need to type in the "a_n" or "an" part, as it's already done)
--------------------------------------------------------------------------
Explanation:
The first term is a1 = 4 since it is given to us
The common difference is d = 3. This is the value that we add to each term to get the next as the recursive steps shows when we write a(n) = a(n-1)+3
In other words,
nth term = [ (n-1)st term ] + 3
next term = (previous term) + 3
Using a1 = 4 and d = 3, we get the following
an = a1+d(n-1)
an = 4 + 3(n-1)
an = 4+3n-3
an = 3n + (4-3)
an = 3n+1