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lawyer [7]
2 years ago
10

(+8) - (0) + (-3) + (-17) O A-12 O B. 12 O C. 21 D.-21

Mathematics
2 answers:
Soloha48 [4]2 years ago
7 0

Answer:

a -12

Step-by-step explanation:

photoshop1234 [79]2 years ago
7 0

Answer:

a) -12

Step-by-step explanation:

Subtract 8 from 0, 8 lefts.

Now add (-3) + (-17).

Now add 8 to (-20)

-12 lefts.

Answer: -12

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Alex73 [517]

Answer: Okay I think D is the answer

Step-by-step explanation:

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3 years ago
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Management at a seaside resort is publishing a brochure and wants to include a statement about the proportion of clear days duri
Ymorist [56]

Answer: B. 264

Step-by-step explanation:

Formula to calculate the sample size 'n' , if the prior estimate of the population proportion (p) is available:

n= p(1-p)(\dfrac{z}{E})^2

, where z = Critical z-value corresponds to the given confidence interval

E=  margin of error

Let p be the population proportion of clear days.

As per given , we have

Prior sample size : n= 150

Number of clear days in that sample = 117

Prior estimate of the population proportion of clear days = p=\dfrac{117}{150}

E= 0.05

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Then, the required sample size will be :

n= \dfrac{117}{150}(1-\dfrac{117}{150})(\dfrac{1.96}{0.05})^2

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n= (0.1716)(39.2)^2

n= 263.687424\approx264

Hence, the sample size necessary to construct this interval =264

Thus the correct option is B. 264

7 0
3 years ago
TO TRANSMIT INFORMATION ON THE INTERNET, LARGE FILES ARE BROKEN INTO PACKETS OF SMALLER SIZES. EACH PACKET HAS 1,500 BYTES OF IN
borishaifa [10]

Answer:

<u>A. It would be needed 20 packets to transmit 30,000 bytes of information.</u>

<u>B. 45'000,000 (45 million) of bytes could be transmitted in 30,000 packets.</u>

Step-by-step explanation:

1. Let's review the data given to us for solving the question:

Size of each packet of information = 1,500 bytes

Number of packets = P

Number of bytes of information = B

2. Let's answer the questions:

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P = 30,000 ÷ 1,500

P = 20

<u>It would be needed 20 packets to transmit 30,000 bytes of information</u>

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<u>45'000,000 (45 million) of bytes could be transmitted in 30,000 packets.</u>

6 0
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valina [46]
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