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elena-s [515]
3 years ago
15

Please help. Explain please.

Mathematics
2 answers:
Mazyrski [523]3 years ago
5 0
That is asking for the sum of the equation 2n+1

up to 5

2(1) + 1 = 3
2(2) +1 = 5
2(3) +1 = 7
2(4)+1 = 9
2(5)+1 = 11

3+5+7+9+11 = 35

answer is 35
Sunny_sXe [5.5K]3 years ago
4 0
When n = 1, 2(1) + 1 = 3

When n = 2, 2(2) + 1 = 5

When n = 3, 2(3) + 1 = 7

When n = 4, 2(4) + 1 = 9

When n = 5, 2(5) + 1 = 11

Sum = 3 + 5 + 7 + 9 + 11 = 35

----------------------------------------------------
Answer: 35
----------------------------------------------------
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maks197457 [2]

Answer: 112°

Step-by-step explanation:

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3 0
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rodikova [14]

Answer: In 5 years it will be worth £455

Step-by-step explanation:

Step 1

Given

The cost of the T.V. for Colin = £530.

The rate of depreciation per year = 3%

Time/ period = 5 years

Formulae to be used

F = P  X (1 - r) ^ n

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F = the future value after depreciation

P = the present value.

r =the interest rate per time period

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Step 2--- SOLVING

F = P  X (1- r) ^ n

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3 0
2 years ago
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kondor19780726 [428]

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7 0
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Elza [17]
Π=180⁰
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-7π/2= -630⁰
6 0
2 years ago
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