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alex41 [277]
3 years ago
9

If f(x) = 5x-2, what is (x)?

Mathematics
1 answer:
LiRa [457]3 years ago
4 0

Answer:

x= 0.4, or x = 2/5

Step-by-step explanation:

To find x you have to replace f(x) with 0 and solve for x

Hope this helps:)

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Determine the sum of the first 9 terms in the geometric series where r= -0.25 and a1= 256.
Damm [24]

\bf \qquad \qquad \textit{sum of a finite geometric sequence} \\\\ S_n=\sum\limits_{i=1}^{n}\ a_1\cdot r^{i-1}\implies S_n=a_1\left( \cfrac{1-r^n}{1-r} \right)\quad  \begin{cases} n=n^{th}\ term\\ a_1=\textit{first term's value}\\ r=\textit{common ratio}\\ ----------\\ r=-0.25\\ a_1=256\\ n=9 \end{cases}

\bf S_9=256\left(\cfrac{1-(-0.25)^9}{1-(-0.25)}  \right)\implies S_9=256\left( \cfrac{1+0.25^9}{1+0.25} \right) \\\\\\ S_9=256\left(  \cfrac{52429}{65536}\right)\implies S_9=\cfrac{52429}{256}\implies S_9=204.80078125

4 0
3 years ago
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Annie plants 6 rows of small flower bulbs in a garden. She plants 132 bulbs in each row. How many bulbs does Annie plant?
Maksim231197 [3]
She plants 792 bulbs 
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Jamie went to Home Depot.She bought 25 bags of soil that cost $9 per bag.She bought 15 pots at $8 each, and she bought 23 bags o
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Answer:

Im pretty sure it is $660

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3 0
4 years ago
Give an example of an addition in which you would and would not group the
Aliun [14]
35+57 is the answer for you question
4 0
3 years ago
ANSWER ASAP
Kisachek [45]

Answer:

X=12

Step-by-step explanation:

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making both equations equal to each other.

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3 years ago
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