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1 year ago

Please explain to me how to do this

Mathematics

2 answers:

Basile [38]1 year ago

6 0

Answer:

see explanation

Step-by-step explanation:

basically Gauss' method simplifies to

Sum = (number of terms) ÷ 2 × (1st term + last term)

S₂₀₀ = 200 ÷ 2 × (1 + 200) = 100 × 201 = 20,100

S₄₀₀ = 400 ÷ 2 × (1 + 400) = 200 × 401 = 80,200

S₈₀₀ = 800 ÷ 2 × (1 + 800 ) = 400 × 801 = 320,400

S₂₀₀₀ = 2000 ÷ 2 × (1 + 2000) = 1000 × 2001 = 2,001,000

nlexa [21]1 year ago

6 0

Answer:

Sum = (number of terms) = 2 x (1st term + last term) 43

43. S200 = 200 = 2 × (1+200) = 100 201 = X 20,100

44 400 400 = 2 × (1+400) = 200 × 401 = 80,200

45 S800 = 800 = 2 × (1+800) = 400 × 801 = 320,400

46 S2000 = 2000 2 × (1+ 2000) = 1000 × 2001 = 2,001,000

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If v is one-third of the quantity 3 less than u, how does v change if u is increasing?

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Answer:

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Step-by-step explanation:

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3 years ago

9th term: a = 125; r = 1.2

Lilit [14]

Answer:

537.47712‬

Step-by-step explanation:

a = 125 ... the first term?

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ok use the formula: a_n = (a_1) * r ^(n-1)

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3 years ago

Use distributive property to rewrite 5 (x+4)

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3 years ago

Read 2 more answers

A week before the election, 1500 people were asked who they planned to vote for. 45%

Setler [38]

By difference, the percentage of people who are not sure who to vote is 100% - 45% - 38% = 17%. The number of people who have not yet decided to whom their votes goes is the product of 1,500 and 17% in its decimal equivalent.

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Therefore, 255 have not yet decided who to vote.

Read more on Brainly.com - brainly.com/question/1554295#readmore

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4 years ago