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MArishka [77]
3 years ago
11

Find the value of the sum ∑j=131(6j2−7j+4)

Mathematics
2 answers:
Sveta_85 [38]3 years ago
7 0
I don’t know but I really need answers
Mashutka [201]3 years ago
7 0
I think that’s sum numbers like 1+3
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7 times as much as the sum of 1/3 and 4/5​
Anika [276]
The correct answer should 1.1333
5 0
3 years ago
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Guadalupe can do a job in 15 hours. If she works with lan, together they can get the job done in 10 hours. How long would it tak
krok68 [10]

Answer:

30 hours

Step-by-step explanation:

The equation we use is 1/15 + 1/x = 1/10. X being the amount of time it takes Ian alone. X works out to 30 hours which is the answer

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2 years ago
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iren [92.7K]

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8 0
3 years ago
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Determine whether the expression is a polynomial. If it is a polynomial state the degree of the polynomial
Pani-rosa [81]

Answer:

It is a polynomial of doom. mwahahahah, you cant stop me spider man

Step-by-step explanation:

6 0
2 years ago
Suppose a city with population of 400,000 has been growing at a rate of ​5% per year. If this rate​ continues, find the populati
kakasveta [241]

The number of years value isn't given, we could use an hypothetical value, which can be substituted for the correct number of years given in your exercise in other to find the exact answer.

Using a t value of 10 years

Answer:

651558

Step-by-step explanation:

Given that:

Initial population, P0= 400,000

Growth rate, r = 5%

Using the relation :

P(t) = P0 * (1 + r)^t

t = number of years = 10

P(10) = 400000 * (1 + 0.05)^10

P(10) = 400000 * (1.05)^10

P(10) = 400000 * 1.628894626777

P(10) = 651557.8507

= 651558 nearest whole number.

Recall that, the t value used is hypothetical and should be replaces with te exact value given in your question.

7 0
3 years ago
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