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2 years ago

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The first term of a geometric series is 3, and the sum of the first term and the second term is 15. What is the sum of the first

six terms?

1 answer:

8_murik_8 [283]2 years ago

7 0

Hello,
$u_{1}=3$
$u_{2}=3*r$

$u_{1}+u_{2}=15=3(1+r)$
==> 1+r=5==>r=4

3+3r+3r²+3r^3+...+3r^6=3(1+r+r²+...+r^6)=3*(r^7-1)/(r-1)=4^7-1=16383

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Chris pays a fee if the bank balance falls below $10 on the statement dae. Prior to the statement date her balance was -3.46. Th

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Answer:

Kindly check explanation

Step-by-step explanation:

Given that :

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Minimum bank balance to avoid penalty = $10

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2 years ago

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Soloha48 [4]

Answer: Yes they could.

Step-by-step explanation:

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2 years ago

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Mars2501 [29]

Answer:

B

Step-by-step explanation:

We are given the function:

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Let this value equal <em>a</em>. In other words:

$\displaystyle f^{-1}(225) = a$

Then by the definition of inverse functions:

$\displaystyle \text{If } f^{-1}(225) = a\text{, then } f(a) = 225$

Hence:

$\displaystyle f(a) =225 = (a)^2 + 12(a) + 36$

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2 years ago

The sequence below represents Marisa’s fine at the library for each day that she has an overdue book:

Georgia [21]

The correct answer for the question that is being presented above is this one: "C. f(n) = 0.15n + 0.35." The equation that represents Marisa’s library fine as a function of a book that is n days overdue is f(n) = 0.15n + 0.35

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2 years ago

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This question is worth 20 points if someone answers it!

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The equation is actually a relationship between the numbers and the variables.

To calculate the number of the tourists in the third week we will put the value 3 in every function:

$f(x)=x^2+5x+10=(3)^2+(3\times 3)+10=29\\\\\\g(x)=3^x=3^3=27\\\\\\h(x)=10x=10\times 3=30$

So we can see that the function third h(x) numberville city is having a maximum number of tourists.

The solution of f(x)=h(x) will be calculated as:

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Hence the solution of f(x)=h(x) will be x(5,2).

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