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Papessa [141]
2 years ago
5

What is the sum of the first 20 terms of the series below?

Mathematics
2 answers:
Evgesh-ka [11]2 years ago
7 0

the sum of the first 20 terms of the series below is C.

Natalija [7]2 years ago
6 0

Answer:

Step-by-step explanation:

Now to find the sum of first 20 terms, substitute n=20,a=−1 and d=4 in S n = 2n [2a+ (n−1)d] as follows: S 20 = 220 [(2×−1)+(20−1)4]=10[−2+(19×4)]=10(−2+76)=10×74=740 Hence, the sum of first 20 terms is 740.

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elena55 [62]

Answer:

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Step-by-step explanation:

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3 years ago
7% of Americans are vegetarians. If you ask a random person whether he or she is a vegetarian, what is the probability that the
ElenaW [278]
This question is flawed. I believe it was meant to ask: "If you ask a random person <span>who identifies as American</span> this question, what is the probability?" etc. Assuming this is the case, it would be 93% probability.

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7 0
3 years ago
Round 374,839 to the nearest thousandth
olchik [2.2K]

Is this question correct? is it thousand or thousandth? and does the comma signify a decimal point?

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3 years ago
Read 2 more answers
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Step-by-step explanation:

lets replace a and b with the numbers provided

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4 0
3 years ago
At 6,000 calories a day, a person with genotype X will weigh 285 lbs with much energy and high cholesterol levels. At 3,500 calo
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Answer: norm of reaction

Step-by-step explanation:

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