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3 years ago

Write an equato

1 answer:

Nutka1998 [239]3 years ago

7 0

Exponential equation

Y=ab^x

A=starting value
B= percent it is increasing/decreasing by
X= Time

Y= 600(1.02)^15

It’s 1.02 bc it’s increasing

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Find the value of a1 for an infinite geometric series with S=12 and r=1/6

blondinia [14]

$S_n=a(1+r+\cdots+r^{n-1}+r^n)$
$rS_n=a(r+r^2+\cdots+r^n+r^{n+1})$
$(1-r)S_n=a(1-r^{n+1})$
$S_n=a\dfrac{1-r^{n+1}}{1-r}$

When $|r|$ , we have

$\displaystyle\lim_{n\to\infty}S_n=\dfrac a{1-r}$

as is the case here. Since $S=\lim\limits_{n\to\infty}S_n=12$ and $r=\dfrac16$ are given, we can find the first term $a$ immediately:

$12=\dfrac a{1-\frac16}\implies12=\dfrac65a\implies a=10$

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4 years ago

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3 years ago

shari plans to bake cherry pies and sell them for $2.75 each . How many pies does she have to sell to make back her investment a

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3 years ago

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If the radius of circle O is 10 inches and m∠UON=90∘, what is the area of sector URN⌢?

arsen [322]

Answer:

75π in²

Step-by-step explanation:

The shaded sector is 3/4 of the circle. We can use the area formula for a circle to find the area of the whole circle, then multiply that result by 3/4.

A = πr² = π(10 in)² = 100π in²

Then the area of 3/4 of the circle is ...

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Step2247 [10]

Answer:

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Step-by-step explanation:

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