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Travka [436]
3 years ago
10

Given: F3 = 5 k + 515 g F4 = 945k - 713 g ; find F20

Mathematics
1 answer:
Alisiya [41]3 years ago
8 0

9514 1404 393

Answer:

  F20 = 15985k -20361g

Step-by-step explanation:

If we assume F3 and F4 are the third and fourth terms of an arithmetic sequence, the common difference is ...

  d = F4 -F3 = (945k -713g) -(5k +515g)

  d = 940k -1228g

Then the 20th term is ...

  F20 = F3 +(20 -3)d = (5k +515g) +17(940k -1228g)

  F20 = 15985k -20361g

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2018 copper penny struck at the Philadelphia mint in 1794 was sold for 345000 rate of return
vodomira [7]

Answer:

The rate of return is 8%.

Step-by-step explanation:

The time span from 1794 to 2018 is (2018 - 1794) = 224 years.

Now, a penny i.e. 0.01 pounds of money as a principal gets the final sum of 345000 pounds after 224 years.

Here we have to calculate the rate of return if the interest is compounded yearly.

Using the formula of compound interest of r% APR, we get

345000 = 0.01 (1 + \frac{r}{100})^{224}

⇒ 1 + 0.01r = 1.08

⇒ 0.01r = 0.08

⇒ r = 8% (Answer)

6 0
4 years ago
Algebra 1 Grade 9.
Leya [2.2K]

Answer:

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Step-by-step explanation:

Given that,

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<h3>a) </h3>

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Expression to compare a magnitude m star to a magnitude 10 star

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<h3>c)</h3>

Yes, it makes sense as a full moon is magnitude -13

so,

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4 years ago
Please help me with this
galben [10]
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3 0
3 years ago
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