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3 years ago

15

Find y round to the nearest tenth

1 answer:

raketka [301]3 years ago

6 0

Answer:

too hard reeeeeeeeeeeeeeeeeeee

Step-by-step explanation:

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When money is spent on goods and services, those who receive the money also spend some of it. The people receiving some of the t

Bad White [126]

Solution :

If $S_n$ is the total spending generated after n transactions, then $a_n$ is the spending generated during the n-th transaction. Since the government spends D dollars, then $a_1$ = D.

Then the second person will receive D dollars and spend $D_c$ dollars. Therefore, $a_2=D_c$ . The next person will receive $D_c$ dollars, which means they are spending $a_3 = (D_c)c = Dc^2$ dollars. Therefore,

$a_1 = D$

$a_2=D_c$

$a_3 = Dc^2$

$a_4 = (Dc^2)c= Dc^3$

....

$a_n=Dc^{n-1}$

∴ $S_n=a_1+a_2+a_3+....+a_n$

$S_n = D+Dc+Dc^2+Dc^3+...+Dc^{n-1}$

$S_n= D(1+c+c^2+...+c^{n-1})$

$S-n=D . \frac{1-c^n}{1-c}$

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3 years ago

6x + 7b - 7x + 10x<br><br>What is the answer to this question?

lara31 [8.8K]

7x+7b = 7(x+b)
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3 years ago

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Kaylis [27]

Would double check all answers just in case

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3 years ago

Is 4.53 a real number?<br> yes or no

Gennadij [26K]

Answer:

yur

Step-by-step explanation:

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If (x+2) is a factor of x^3-6x^2+kx+10, k=

Alja [10]

If a binomial $(x-a)$ is a factor of a polynomial, then $a$ is a root of this polynomial.

$(x+2)=(x-(-2)) \Rightarrow a=-2\\\\
(-2)^3-6\cdot(-2)^2+k\cdot(-2)+10=0\\
-8-24-2k+10=0\\
-2k=22\\\
\boxed{k=-11}
$

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3 years ago