answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
s344n2d4d5 [400]
2 years ago
4

What is the sum of the series? 10 Σ(7k– 2) k=1

Mathematics
1 answer:
Ivahew [28]2 years ago
5 0

Answer:

365

Step-by-step explanation:

The simplest method is to substitute values of k = 1 to 10 into the expression and sum the terms, that is

7(1) - 2 + 7(2) - 2 + 7(3) - 2 + 7(4) - 2 + 7(5) - 2 + 7(6) - 2 + 7(7) - 2 + 7(8) - 2 + 7(9) - 2 + 7(10) - 2

= 5 + 12 + 19 + 26 + 33 + 40 + 47 + 54 + 61 + 68

= 365

You might be interested in
Ivan and kate live 42 miles apart. ivan leaves his house at 8:00 a.m. and bikes towards kate's house at a constant speed of 12 m
valentinak56 [21]

Answer:

10:18am

Step-by-step explanation:

7 0
2 years ago
The evening host of a dinner dance reached into a bowl, mixed all the tickets around, and selected the ticket to award the grand
Scilla [17]

Answer:

Simple random sampling method is used here.

Step-by-step explanation:

Given is that the evening host of a dinner dance reached into a bowl, mixed all the tickets around, and selected the ticket to award the grand door prize.

We can see that this is a simple random sampling method as every name on the ticket has an equal opportunity to get selected.

8 0
2 years ago
Natasha is seeding her backyard. The backyard is square in shape and has an area of 4225 square feet. What is the length of one
N76 [4]

Answer:65ft

Step-by-step explanation:area of a square is =s^2

Therefore 4225=s^2

Find the square root of both sides

√4225=√s^2

Therefore s=65

Each side is 65ft

5 0
2 years ago
Helen is putting a fence around her flower garden, which is in the shape of half of a circle and a rectangle. if the semicircle
Nataly_w [17]
See the picture in the attached figure

we know that

[perimeter of the f<span>lower garden]=[7+10+10]+[pi*7/2]----> 27+10.99---> 37.99 ft

the answer is
37.99 ft </span>

5 0
2 years ago
Read 2 more answers
chong earns an annual salary of 29,500. how much is his biweekly paycheck? $1,134.62 $1,135.62 $1,234.62 none of the above
oee [108]
To figure this out, divide the annual salary by the months in a year.
29,500/12=2458.33 
Now divide that by half of the amount of weeks in month
2458.33/1.5=1638.88
So the answer is none of the above.
6 0
2 years ago
Other questions:
  • Jude has seven times as many dimes as nickels their value is $5.25 how many nickels does he have.
    12·2 answers
  • Ben the camel drinks tea (so classy!). He drinks 350350350 liters of tea every 222 days.
    11·2 answers
  • Use what you know about compound statements to determine if "A piece of paper is an object that can be drawn on " would be consi
    5·2 answers
  • What is 0.080 as a fraction
    5·2 answers
  • PLEASE HELPPP!! Triangle HJK and triangle PMK are similar right triangles.
    11·2 answers
  • A supplier delivers an order for 20 electric toothbrushes to a store. By accident, three of the electric toothbrushes are defect
    11·1 answer
  • Scenario:You are a Geographic Information System (GIS) specialist who normally works at the Public Works Planning office.You are
    5·1 answer
  • Turn the following fraction into a PERCENT: 15/60 ​
    5·2 answers
  • Sana deals in designer handbags. She bought 5 handbags at a price of 18,000 each and sold them all at a profit
    5·1 answer
  • The angle of elevation to a nearby tree from a point on the ground is measured to be 47^{\circ} ∘ . How tall is the tree if the
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!