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SSSSS [86.1K]
3 years ago
8

What is the sum of the first 100 terms of the arithmetic sequence 2, 7, 12, 17?

Mathematics
1 answer:
Naddik [55]3 years ago
8 0

Answer:

25452

Step-by-step explanation:

each term goes up by 5 so the formula is 2+5(n-1) where n is the term number

so the equation is ∑n=1 101 (2+5(n-1))

∑n=1 101 (5n-3) = 25452

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IgorLugansk [536]

Solve for c by simplifying both sides of the equation, then isolating the variable.

Exact form: c = -4/9, 2

Decimal form: c = -.4, 2

5 0
3 years ago
Please help me with this question.
Inessa [10]

Answer:

B

Step-by-step explanation:

The SA of a cone is A=pi*r^2+pi*r*s

So instead of pi*5^2, it should be pi*3*5 (5 is the length of the slant).

5 0
3 years ago
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vfiekz [6]
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6 0
3 years ago
Guys help please I am struggling
alina1380 [7]

9514 1404 393

Answer:

  14.1 years

Step-by-step explanation:

Use the compound interest formula and solve for t. Logarithms are involved.

  A = P(1 +r/n)^(nt)

amount when P is invested for t years at annual rate r compounded n times per year.

Using the given values, we have ...

  13060 = 8800(1 +0.028/365)^(365t)

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Now we take logarithms to make this a linear equation.

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Dividing by the coefficient of t gives us ...

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  t ≈ 14.1

It would take about 14.1 years for the value to reach $13,060.

8 0
3 years ago
Malia works at a movie theater and is paid hourly. One month, she earned $388.80. The total amount she earns can be found using
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Bill : if he earned 144.90 for working 18 hrs.....144.90/18 = 8.05 per hr worked.

so Malia makes 5 cents more per hr worked.

Is that the answer ur looking for ?
4 0
4 years ago
Read 2 more answers
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