Answer:
encerio y eso
Step-by-step explanation:
So for finite series like these, you just plug in each number for k that it tells you. The first says the sum of 3k^2 from k=1 to k=4. Just plug integer k between 1 and 4 into the equation and add them together:
3(1^2)+3(2^2)+3(3^2)+3(4^2)=90
Same for the next one, except this is for all values of k between 3 and 6:
(-5(3)+20)+(-5(4)+20)+(-5(5)+20)+(-5(6)+20)=<span>-10</span>
2 * 2 * 2 in exponential form is 2^3.
Since 2 is being multiplied, that's the base. 2 is being multiplied 3 times, so that's the exponent.
the answer is 168
Step-by-step explanation:
you times 4 by 2 you get 8.
now you got to times 4 by 40 and you get 160
now you add 8 to 160 you will get 168
