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3 years ago

Please help me with my HW

Mathematics

2 answers:

pentagon [3]3 years ago

4 0

So you can scan it here and it will give you the sotoiun and answers just make sure u show ur workkk good luck

lisabon 2012 [21]3 years ago

3 0

Answer:

1. 300 first and = 575

2. Righ them in order =51 +7.5 =51 19.5 + 7.5 =51

3. -26 first and +0.1 and then =61.3

4. 8.4+6.21=14.61

14.61+2.6=17.27 thats your answer

5. 18.37

Step-by-step explanation:

The other people can help you with the rest please your welcome

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2 years ago

The 2nd, 6th, 8th terms of an A.P. form a G.P. , find the common ratio and the general term of the G.P.

melisa1 [442]

The terms of an arithmetic progression, can form consecutive terms of a geometric progression.

The common ratio is: $\mathbf{r = \frac{a + 5d}{a + d}}$
The general term of the GP is: $\mathbf{a_n = (a + d) \times (\frac{a + 5d}{a + d})^{n-1}}$

The nth term of an AP is:

$\mathbf{T_n = a + (n - 1)d}$

So, the 2nd, 6th and 8th terms of the AP are:

$\mathbf{T_2 = a + d}$

$\mathbf{T_6 = a + 5d}$

$\mathbf{T_8 = a + 7d}$

The first, second and third terms of the GP would be:

$\mathbf{a_1 = a + d}$

$\mathbf{a_2 = a + 5d}$

$\mathbf{a_3 = a + 7d}$

The common ratio (r) is calculated as:

$\mathbf{r = \frac{a_2}{a_1}}$

This gives

$\mathbf{r = \frac{a + 5d}{a + d}}$

The nth term of a GP is calculated using:

$\mathbf{a_n = a_1r^{n-1}}$

So, we have:

$\mathbf{a_n = (a + d) \times (\frac{a + 5d}{a + d})^{n-1}}$

Read more about arithmetic and geometric progressions at:

brainly.com/question/3927222

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3 years ago