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andrey2020 [161]
4 years ago
11

Given ABCD, what is the measure of angle B

Mathematics
2 answers:
xxTIMURxx [149]4 years ago
5 0

Answer:

145 degrees

Step-by-step explanation:

angle D equals angle B

sp2606 [1]4 years ago
3 0

Answer: 145 degrees; F

Step-by-step explanation: This is because of the vertical angles theorem. No matter what, every vertical angle, in this case angles D and B, they will always have the same number of measure.

To illustrate, if D is congruent to B, then they have the same measure meaning that the measurement of B is equal to the measurement of D. Thus, meaning that B is equal to 145 degrees.

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A measurement template with a historcal value of 25.500 is measured 27 times and a mean value of 25.301 is recorded. What is the
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Complete Question

A measurement template with a historical value of 25.500 mm is measured 27 times and a mean value of 25.301 mm is recorded. What is the percent bias when the tolerance is +/- 0.3?

Answer:

The percent bias is  B = 33.167 \%  

Step-by-step explanation:

From the question we are told that

   The historical value  is  S = 25.00 \ mm

   The number of times it is measured is  n  =  7  

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Generally the percent bias is mathematically represented as

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=>  B = 100 * \frac{25.301 - 25.5000 }{0.6}

=>  B = 33.167 \%  

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3 years ago
A runner increased her distance from 9 miles to 12.5 miles a week. Find the percent increase in mileage.
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Answer:

<u>39 percent</u> is increase in mileage.

Thus, the correct option is B. 39%.

Step-by-step explanation:

Given:

A runner increased her distance from 9 miles to 12.5 miles a week.

Now, to find percent increase in mileage.

Previous mileage = 9 miles.

Present mileage = 12.5 miles.

<em>Mileage increase = 12.5 - 9 = 3.5 miles.</em>

Now, to get the percent increase in mileage:

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<u><em>Approximately the percent increase = 39%.</em></u>

Therefore, 39% is increase in mileage.

Thus, the correct option is B. 39%.

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Step-by-step explanation:

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