3 years ago

What is the sum of this arithmetic series?

Mathematics

2 answers:

ValentinkaMS [17]3 years ago

7 0

Answer:

Step-by-step explanation:

The ' easiest' method here is to substitute k = 1, 2, 3, 4 into the expression and sum the terms, that is

(- 2 + 6(1) ) + ( - 2 + 6(2) ) + ( - 2 + 6(3) ) + (- 2 + 6(4) )

= (- 2 + 6) + (- 2 + 12) + (- 2 + 18) + (- 2 + 24)

= 4 + 10 + 16 + 22

MrMuchimi3 years ago

6 0

The sum of this arithmetic series is 52.

You might be interested in

What is the definition of slope

lbvjy [14]

Answer:

A slope is a surface of which one end or side is at a higher level than another

Step-by-step explanation:

HAVE A GOOD DAY!

6 0

3 years ago

Lb = 64 oz Helppppppppppppp me<br><img src="https://tex.z-dn.net/?f=5" id="TexFormula1" title="5" alt="5" align="absmiddle" clas

chubhunter [2.5K]

Answer:

no u

Step-by-step explanation: no no no no no no no no no

7 0

3 years ago

What value of c makes the polynomial below a perfect square? X2+5x+C

Reika [66]

Answer:

I think the answer is c = 25/4

Step-by-step explanation:

7 0

3 years ago

An ice cream shoppe charges $1.19 for a scoop of ice cream and $0.49 for each topping. Jeb paid $4.55 for a three scoop sundae.

AysviL [449]

He bought 3 scoops, each costing $1.19
The cost of the three scoops= 3*1.19= $3.57

Total cost of scoops and toppings is $4.55
Cost of toppings only= 4.55-3.57= $0.98
Each topping costs $0.49

Therefore number of toppings bought= 0.98/0.49= 2

Answer: 2 toppings

3 0

4 years ago

The larger of two numbers is 7 more than 5 times the other. Their sum is 55. Find the two numbers.

viva [34]

Answer:

Step-by-step explanation:

8 and 47

7 0

3 years ago