3 years ago

Suppose an arithmetic sequence has a common difference of -5. What is the next term after 105?

Mathematics

1 answer:

Andru [333]3 years ago

4 0

Answer:

Step-by-step explanation:

$a_{n+1}=a_n\cdot r$

So, if the common ratio is -5 the next term is always (-5) times the previous term.

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Given that f(x) = 10x + 45, find f(7)

sattari [20]

Answer:

$\boxed{\bf f(x) = 115}$

Step-by-step explanation:

Given polynomial function :-

$f(x) = 10x + 45$

To find :-

$\sf \: f(7)$

Solution:-

$\sf \implies \: f(x) = 10x + 45$

Here, the value of x is 7(given).

So, Substitute the value of x on the RHS and on LHS :-

$\sf \implies{f}(“7”) = 10(“7”) + 45$

Simplify the RHS:-

Multiply 10 and 7 :-

$\sf \implies{f}(7) = 10 \times 7 + 45$

$\sf \implies{f}(7) = 70 + 45$

Add 70 and 45 :-

$\sf \implies{f}(7) = 115$

We're done!

Hence, the value of f(7) would be,

$\sf \implies{f}(7) = 115$

$\rule{225pt}{2pt}$

I hope this helps!

Let me know if you have any questions.

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3 years ago

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Answer

Step-by-step explanation:

-4*20=-80

-4+20=16

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