It should be 715, i don’t understand why that isn’t one of the choices.
you’re supposed to multiply everything
M = 135/19 and n = -5/19
You have to give them like terms so that when you eliminate they cancel out and you can solve. The easiest way to do so is by multiplying the top equation by -4 and the bottom by 3.
Answer: ![-18x^4-6x^3+9x^2](https://tex.z-dn.net/?f=-18x%5E4-6x%5E3%2B9x%5E2)
Step-by-step explanation:
![-3x^2(6x^2+2x-3)](https://tex.z-dn.net/?f=-3x%5E2%286x%5E2%2B2x-3%29)
![-18x^4-6x^3+9x^2](https://tex.z-dn.net/?f=-18x%5E4-6x%5E3%2B9x%5E2)
Answer:
here is your answer
Step-by-step explanation:
here is your answer
Answer:
120
Step-by-step explanation:
Given arithmetic sequence
3,5,7,9,.........,21
The first term a=3 & a common difference d=5−3=7−5=⋯=2
If there are n number of terms in the above A.P. then last term l=21 will be the nth term given as
l=a+(n−1)d
21=3+(n−1)2
n=10
hence the sum of given arithmetic progression (A.P.) up to 10 terms is given general formula
Sn=n2(a+l)
S10=102(3+21)
=120