1. what is the sum of the series?

∑i=153i

enter your answer in the box.

2.what is the sum of the series?

∑k=143k2

enter your answer in the box.


3. what is the sum of the series?

∑k=36(2k−10)

4. which answer represents the series in sigma notation?

1+14+116+164+1256+11024+14096

∑j=1714j+1

∑j=1714(j+1)

∑j=174j−1

∑j=17(14)j−1

5. which answer represents the series in sigma notation?

−5+(−1)+3+7+11

∑j=15(4j−9)

∑j=15(−6j+1)

∑j=15−5⋅(15)j−1

∑j=155j−1

the entire expression should be subtracted from 30. to subtract the quantity, distribute the negative sign, which changes the signs on the terms. so, the –2 changes to positive and gets added to 30 instead of subtracted from it.

hope this ! ^w^

180

step-by-step explanation:

6,250

step-by-step explanation:

to get the area, multiply 360 by 160.(57,600)

to find out how many bags of fertilizer it will take, first figure out how many square feet one bag can hold. divide 1000 by 8(125) to get the unit rate(how many square feet one pound of fertilizer can hold)and multiply it by 50(6250). if i haven't made a mistake, that is the answer.