A missile uses an internal computer clock to measure time in tenths of a second. The missile guidance system needs the time from launch, in seconds, in order to calculate its distance from the launch site. It obtains this by multiplying the computer clock time by 0.1. So, for example, a reading of 50 tenths of a second is 5 seconds. For one particular missile system, the conversion factor of 0.1 is stored in 8 bits as the binary number 0.000110012.The missile’s internal computer clock shows 200 tenths of a second. Convert this to seconds using your result from Part (i) of this question. Do not round your answer. The missile guidance system now records that it has travelled for this number of seconds.
Answers
Using proportions, it is found that the missile's internal computer clock is of 20 seconds.
- According to the information given, this question can be solved by proportions, using a rule of three.
50 tenths of a second is equivalent to 5 seconds, and we want to find the equivalent to 200 tenths of a second, thus, the rule of three is:
50 tenths - 5 seconds
200 tenths - x seconds
Applying cross multiplication:
The missile's internal computer clock is of 20 seconds.
A similar problem is given at brainly.com/question/24372153
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Answer:
Average quality rating was 4.54+-0.00549
Final answer:
The estimate for the average quality rating from the production line, given this sample, is 4, with a degree of uncertainty expressed by a 95% confidence interval of 4 ± 0.031. The confidence interval represents a range whereby we can be 95% confident that the true mean lies within.
Explanation:
Since you have the average (mean) quality rating and standard deviation from a sample size of 1000 widgets, we can use these statistics to establish an estimate for the entire production line. The estimate of the average quality rating is given as 4. However, to account for the uncertainty of our estimate due to it being based upon a sample rather than the entire population, we use the concept of a confidence interval.
The formula for a confidence interval is mean ± z* (standard deviation/sqrt(n)), where z is a z-score corresponding to our desired level of confidence. For simplicity, we can use a z-score of 1.96 to represent a confidence level of 95%.
Therefore, the uncertainty in this estimate (at 95% confidence) is calculated as:1.96 * (0.5/sqrt(1000)), approximately equal to 0.031. So the confidence interval for the average quality of widgets is 4 ± 0.031.
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2x+ y= 3
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8.0 x105 +6.0 x107 =
A
14,000,000,000,000
B
140,000,000
с
60,800,000
D
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Answers
Answer:
с 60,800,000
Step-by-step explanation:
Any scientific or graphing calculator can evaluate this expression for you.
__
When adding numbers in scientific notation, they need to have the same multiplier exponent. Here, it is convenient to use 10^6:
8.0×10^5 = 0.8×10^6
6.0×10^7 = 60×10^6
Then the sum is ...
(0.8 +60)×10^6 = 60.8×10^6 = 60,800,000
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Which of the following could replace the missing ordered pair to make the set not a function?
(−2, 4)
(21, 9)
(−7, 15)
(6, 8)
(13,−15)
Answers
The ordered pair that could replace the missing ordered pair to make the set not a function is given as follows:
(−7, 15).
When does a set of ordered pairs represent a function?
A set of ordered pairs represents a function if every input (first component of the ordered pair) is associated with exactly one output (second component of the ordered pair). In other words, if no two ordered pairs in the set have the same first component but different second components.
Hence the ordered pair (-7,15) would make the relation not a function, as the set already has the ordered pair (-7,-15), in which the input 7 is already mapped to an output of -15, hence it cannot be mapped to an output of 15.
More can be learned about relations and functions at brainly.com/question/12463448
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