1answer.
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
diamong [38]
3 years ago
15

What is the sum of the series? 5 ​ ∑ 2j j=1

Mathematics
1 answer:
Nookie1986 [14]3 years ago
4 0
Substituting for values of j:-

S5  =  2(1) + 2(2) + 2(3) + 2(4) + 2(5)  =  2+4+6+8+10  =  30 answer
You might be interested in
In order to clear out room for new merchandise, James decided to mark down some of the items for sale in his electronics store.
skelet666 [1.2K]
Lets day the original price of the dvd player was $100,
36% marked down means you pay $64x
64x = $41.60
100x = 100/54 x 41.60 = 4160/64 = #65.00 = original cost
similarly, stereo tuners = 100/78 x 69.42 = 6942/78 = $89 original cost
DVD = 65- 41.60 = $ 23. 40 less 
Stereo = 89- 69.42 = $ 19.58 less
Diffrence is $ 3.82
so your answer is the dvd player price was reduced by $3.82 more than the stereo tuner.
8 0
4 years ago
Read 2 more answers
A point is represented by a:
Thepotemich [5.8K]

Answer:

i would say the first one and second one

Step-by-step explanation:

because the point is an o and an dot at the same time

5 0
3 years ago
five people, each working 8 hours a day, can assemble 400 toys in a five day work week. what is the average number of toys assem
vladimir1956 [14]

The question asks for the rate of toys per hour.

So we shall divide the total toys assembled by the total hours.

Its a five day week.

The number of hours allotted per day are 8.

So total allotted during the week are 8 × 5 = 40 hours.

Number of toys made during the week are 400.

Hence the number of toys assembled per hour per person

= number of toys / number of hours

= 400 / 40

= 10 toys per hour per person.

The average number of toys assembled per hour per person is 10.


8 0
3 years ago
Read 2 more answers
The parabola shown is congruent to y = x^2. a) what are the zeroes of the function? B) write the equation in factored form.
Murljashka [212]

Answer:

idk

Step-by-step explanation:

8 0
3 years ago
a jar contains 30 red, 40 blue, and 59 white buttons. you pick one button at random, .find the probability that it is blue​
Cerrena [4.2K]

Answer:

40/129

Step-by-step explanation:

30 Red + 40 Blue + 59 White = 129 marbles

40 blue / 129 marbles is about 31%

6 0
4 years ago
Other questions:
  • What will always exist in any economic system?
    15·2 answers
  • Whats 45 572 in words
    6·2 answers
  • Which of the following objects is made up of two circular bases and a lateral surface?
    8·2 answers
  • Change 5x-3y=3 in slope intercept and graph it
    14·1 answer
  • I need help is it A B C or D
    8·1 answer
  • 1) Jan is buying new flooring for her kitchen. The kitchen is a rectangle that is 3
    11·1 answer
  • What is the answer to this equation <br> 1) 4(x + 5) = 40
    8·1 answer
  • Help if you love the boiz
    10·1 answer
  • Simplify the expression. 8x^-10 y^'6 -2x^2y^-8 Write your answer without negative exponents.​
    15·1 answer
  • ∠A and \angle B∠B are vertical angles. If m\angle A=(5x-4)^{\circ}∠A=(5x−4) ∘ and m\angle B=(2x-1)^{\circ}∠B=(2x−1) ∘ , then fin
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!