All categories

3 years ago

What is the sum of the series?

Mathematics

2 answers:

Nikolay [14]3 years ago

5 0

44

Hope this helped!!

Natalija [7]3 years ago

4 0

Answer:

Step-by-step explanation:

k=1: 2*1-4 = -2

k=2: 2*2²-4 = 4

k=3: 2*3²-4 = 14

k=4: 2*4²-4 = 28

-2 + 4 + 14 + 28 = 44

You might be interested in

jodi and laura went out to dinner at their favorite sandwich shop . if their bill w's $21.95 and they wanted to leave a 15% tip

Molodets [167]

Answer:

$3.293

Step-by-step explanation:

You would multiply your total amount, 21.95, by your tip divided by 100, so 0.15. It would look like this: 21.95 x 0.15 = 3.293. Therefore, you would give the waitress a $3.293 tip. I Hope This Helps :)

4 0

2 years ago

Angela work on a straight 7% commission. Her friend worked on a salary of $600 plus a 10% commission. In a particular month, the

sveticcg [70]

all you need to do is change your percentages to decimal and then multiply

7 0

2 years ago

Q # 19 The data below shows the. number of hours a week on average group of students spend volunteering for community service pr

alisha [4.7K]

If those two are your only choices then the answer is none of the above.

<em>Attached is a cumulative frequency table for your data.</em>

If you take a look at the two tables given, the frequencies were not tallied properly. If the frequency column is wrong, then the cumulative frequency will be wrong.

The answer is then none of the above or find one that matches the table attached.

7 0

3 years ago

Find the area of a circle with radius, r = 76cm.<br> Give your answer rounded to 3 SF.

PSYCHO15rus [73]

Answer:

17,700.00

Step-by-step explanation:

Area of a circle = 22

------ r2

=22

------ 76x76 =123,750

7 ---------- =1,768.571

1,768.571 rounded to 3 SF=17700.00

5 0

1 year ago

The numbers Of students in the four sixth-grade classes at Northside School are 26,19,,34,and 21.Use the properties to find the

Dafna11 [192]

Basically there are 3 addition properties and they are associative property, identity property, and commutative property.

Commutative property is just changing the order of the addends. Example: 26+19+34+21= 21+34+19+26

Identity Property is just adding a 0 to the number that doesnt change anything. Example: 26+19+34+21 +0 = 100

Associative property is just changing the grouping of the addends. Example: (26+19) + (34+21)

I know these properties may be complicated i know inhate them too haha but i hope i helped :) if you want you can search up the distributive property too but its with multiplication and addition combined and its harder but i think these are the 3 main properties.

7 0

2 years ago

What is the sum of the series?​

What is the sum of the series?