All categories

3 years ago

What is the sum of the series 18 E n=4 (n+1) ^2? 1,239 2,415 2,440 2,469

Mathematics

2 answers:

Akimi4 [234]3 years ago

8 0

Answer:

Step-by-step explanation:

hope it helps u too

Leto [7]3 years ago

5 0

9514 1404 393

Answer:

Step-by-step explanation:

The sum of the squares of numbers 1 .. n is ...

s(n) = n(n +1)(2n +1)/6

You want the sum of squares from 5 to 19. We can compute that from ...

s(19) -s(4) = (19(20)(39) -4(5)(9))/6 = (14820 -180)/6 = 2440

You might be interested in

I really need help fast and ill do anything just help me plz

podryga [215]

Answer is C. 12.22cm

C = pi x diameter

Diameter = 20cm

You times pi by 20cm (diameter) to get the circumference of approx 62.84cm

Then times the circumference by the angle in the circle

62.84 x 70/360 = 12.22cm

3 0

3 years ago

Im looking for some help on these questions. The answer that best answers the questions and helps me the most will receive brain

s344n2d4d5 [400]

Detailed solution is attached!!~

Diagram for ques. 3 is also attached!!

7 0

2 years ago

What is the sum of the fractions? Use the number line to help find the answer.

natali 33 [55]

Answer is - 4 over 5

4 0

3 years ago

Robert gets a loan from his bank.

masya89 [10]

Answer:

£10200

Step-by-step explanation:

Amount borrowed (P) = £6000

Rate of interest (R) = 7%

Time (T) = 10 years

First, let us calculate the simple interest (SI) for 10 years.

Formula for simple interest is given as:

$S.I.=\frac{PRT}{100}$

Plugging the values of P, R and T in the above formula, we find:

$S.I.=\frac{6000(7)(10)}{100}$

S.I.= £4200

Total money paid back at the end of the 10 years

= £6000 + £4200

= £10200

7 0

2 years ago

In a bag, Gary has 3 red marbles, 4 blue marbles, 7 yellow marbles, 5 green marbles, 6 purple marbles, and 8 clear marbles. What

miskamm [114]

Answer:

2220

Step-by-step explanation:

gcd of all numbers

3,4,7,5,6,8

2 = 3,2,7,5,3,4

2 = 3,1,7,6,3,2

2 = 3,1,7,5,3,1

3 = 1,1,7,5,1,1

6 0

2 years ago