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An arithmetic series has first term a and common difference d, where d is a prime number. The sum of the first n terms of the series is Sn and Sm=39 , S2m=320 . Find the value of d and the value of m.

answered Apr 26, 2024

1 answer 179k views

Design a helical spring for an engine valve length of the spring when the valve in open in 45mm. and the length when closed in 55mm. spring load on the valve when open is 450N and when closed in 300N.

asked Feb 9, 2024

1 answer 185k views

What is the meaning of "stiffening the provisions"?

asked Feb 7, 2024

1 answer 110k views

What are three facts that you know about the Cold War?

asked Nov 6, 2023

1 answer 1.7k views

What is the equation of a line that has a slope of .8 and passes through the point (-3,1)

asked Oct 16, 2023

1 answer 38.5k views

Write the explicit and recursive rules for the geometric sequence shown in the table.

answered Sep 12, 2023

1 answer 104k views

Why did Napoleon annul his marriage to his first wife, Josephine, and instead marry Marie-Louise, the daughter of Austrian Emperor Francis I? Now that he was an emperor, he wanted a wife of royal blood.

answered Jun 9, 2023

1 answer 114k views

What are the five generations of computer software

answered Jun 7, 2023

1 answer 21.7k views

HELP I WILL GIVE YOU ALL THE POINTS I HAVE HELP PLEASE Story 1 A wealthy boy from a prominent family was always pampered and taken care of, but he never had anything to do. He started taking long walks

answered May 11, 2023

1 answer 39.8k views

Question 18 of 25Which property of a mechanical waves is determined by the energy that thewave carries?O A. AmplitudeB. Wave speedC. WavelengthD. FrequencySUBMIT

asked Apr 6, 2023

1 answer 12.2k views

1) The young people in this coffeehouse are part of the__ movement?

asked Mar 12, 2023

1 answer 13.6k views

There is a population of 405,000 bacteria in a colony. If the number of bacteria doubles every 44 hours, what will the population be 176 hours from now?

answered Feb 18, 2023

1 answer 37.2k views

Does anyone know how to solve this! (30 points)

answered Jan 28, 2023

1 answer 138k views

Bramble Corp. expects to purchase $110000 of materials in July and $130000 of materials in August. Three-fourths of all purchases are paid for in the month of purchase, and the other one-fourth are paid

answered Nov 30, 2022

1 answer 46.2k views

1.A person who acts in a comedy is a ________.A. comedyB. comedianC. newsreaderD. producer

asked Nov 2, 2022

1 answer 91.3k views

a construction worker needs to put a rectangular window in the side of a building. He knows from measuring that the top and bottom of the window have a width of 9 feet and the sides have a length of 12

answered Oct 28, 2022

1 answer 96.9k views

Question 2 The HELP strategy is most useful when you are A) making decisions. B) making an action plan, C) developing values. D) setting goals.

answered Oct 7, 2022

2 answers 21.7k views

A student is using a spinner with four equal sections numbered 1 through 4. He also tosses a fair coin. What is the correct sample space for this compound event? A. {H, T} B. {(HT, 1), (HT, 2), (HT, 3),

answered Sep 20, 2022

2 answers 114k views

Why so sad? Remember we made an arrangement when you went away Now you're making me mad Remember, despite our estrangement, I'm your man You'll be back Soon you'll see You'll remember you belong to me

answered Sep 10, 2022

1 answer 120k views

PLEASE HELP I DON'T WANNA FAIL The electric field between two parallel plates has a magnitude of 1250 N/C. The positive plate is 0.05 m away from the negative plate. The electric potential difference between

asked Aug 23, 2022

2 answers 4.9k views

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