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rewona [7]
2 years ago
13

The picture below shows a right-triangle-shaped charging stand for a gaming system: The side face of a charging stand is a right

triangle labeled ABC. The measure of angle ACB is 90 degrees, and the measure of angle ABC is 60 degrees. The length, BC, of the side adjacent to the angle ABC is 8 inches. Which expression shows the length of side AB? 8(cos 60°) 8 over sin 60 degrees 8 over cos 60 degrees 8(tan 60°)

Mathematics
1 answer:
mamaluj [8]2 years ago
3 0

Answer:

AB = 8/ cos 60

Step-by-step explanation:

We want to find the hypotenuse AB

Since we have a right triangle

cos theta = adj/ hyp

cos 60 =  8/ AB

AB cos 60 = 8

AB = 8/ cos 60

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1:Suppose we have a bag with $10$ slips of paper in it. Eight slips have a $3$ on them and the other two have a $9$ on them. Wha
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Answer:

Step-by-step explanation:

1 ) No of total slips after addition = 11

8 slip with 3 on it

3 slips with 9  on it

expectation value = probability of 3 x 3 + probability of 9 x 9

=  (8 / 11)  x 3 + (3 / 11)  x 9

24 / 11 + 27 / 11 = 4.636

2 )

No of total slips after addition = 12

8 slip with 3 on it

4 slips with 9  on it

expectation value = probability of 3 x 3 + probability of 9 x 9

=  (8 / 12)  x 3 + (4 / 12)  x 9

2 + 3 = 5

3 )

Let n be the required number

No of total slips after addition = 10+n

8 slip with 3 on it

2 + n  slips with 9  on it

expectation value = probability of 3 x 3 + probability of 9 x 9

=  (8 / 10+n )  x 3 + (2+n  / 10+n )  x 9 = 6

24 + 18 + 9n / 10 + n  = 6

42 + 9n = 60 + 6n

3 n = 18

n = 6

4 )

Let n be the required number

No of total slips after addition = 10+n

8 slip with 3 on it

2 + n  slips with 9  on it

expectation value = probability of 3 x 3 + probability of 9 x 9

=  (8 / 10+n )  x 3 + (2+n  / 10+n )  x 9 = 8

24 + 18 + 9n / 10 + n  = 8

42 + 9n = 80 + 8n

n =

n = 38

Minimum of 38 has to be added .

6 0
2 years ago
Learn by DoingHere are the directions, grading rubric, and definition of high-quality feedback for the Learn by Doing discussion
Dahasolnce [82]

Answer:

Follows are the solution to this question:

Step-by-step explanation:

Recommendation from the American Chiropractic Association:

No more than 10\%  of body weight should be borne through kids

Third classification:

More than 10\% of its weight:11 + 3 +0 +0 = 14

ACA Suggestion proportion of children = ( \frac{14}{21}) \times 100 = 66.67\%

Fifth degree:

Over 10\%  of body weight:4 + 7 + 1 + 2 + 1 = 15

ACA Suggestion for children = (\frac{15}{22}) \times 100 = 68.18\%

ACA suggestion doesn't quite follow either majority for third and fifth grades: fifth grades (68.18%) are marginally hyper-third grades (66.67%).

8 0
1 year ago
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