Answer is 19;
Problem
a1=325 , d=25 , S19=?
Result
S19=10450
Explanation
To find S19 we use formula
Sn=n2⋅(2a1+(n−1)⋅d)
In this example we have a1=325 , d=25 , n=19. After substituting these values into the above equation, we obtain:
Sn19=n2⋅(2a1+(n−1)⋅d)=192⋅(2⋅325+(19−1)⋅25)=192⋅(650+18⋅25)=192⋅(650+450)=192⋅1100=10450
B is the answer. If you solve for x, the values you get are 2.7077 and -0.422.
the answer is a becuse you tacke that little dot and you slid it to the left tow times
Answer: -1410
Step-by-step explanation:
Let's start by subbing in -4 for x

Now we can solve
