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Leya [2.2K]
3 years ago
8

Question content area top

Mathematics
1 answer:
klasskru [66]3 years ago
3 0

Answer:

12

Step-by-step explanation:

if we know we want a profit of at least 114, we need to solve for x.

if we put 12 for x we get the answer 117 and when we put 11 for x we get less than 114.

-0.5(12)^2 + 25(12)-111 = 117

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Find the sum of series 4/(4n-3) (4n+1)
ANTONII [103]
\dfrac4{(4n-3)(4n+1)}=\dfrac1{4n-3}-\dfrac1{4n-1}

Assuming the sum starts at n=1, the Nth partial sum is

\displaystyle\sum_{n=1}^N\left(\frac1{4n-3}-\frac1{4n-1}\right)=\left(1-\frac15\right)+\left(\frac15-\frac19\right)+\cdots+\left(\frac1{4N-7}-\frac1{4N-3}\right)+\left(\frac1{4N-3}-\frac1{4N+1}\right)
\displaystyle\sum_{n=1}^N\left(\frac1{4n-3}-\frac1{4n-1}\right)=1-\frac1{4N-1}

As N\to\infty, you're left with simply 1.
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7 0
3 years ago
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Round it to 1 significant figure
balu736 [363]

Answer:

2 ( one significant figure)

Step-by-step explanation:

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3 0
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r-ruslan [8.4K]

Answer:

answer is B............

Step-by-step explanation:

72-42...30

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30 divided by 3 gives you 10

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