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irakobra [83]
3 years ago
13

Find the exact value of sin (13pi/8)

Mathematics
1 answer:
AnnZ [28]3 years ago
6 0

Answer:

degree 0.089

radian -0.92

Step-by-step explanation:

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What is the difference of the lengths of BD and CE ? Use the value (pie) = 3.14, and round the answer to two decimal places.
lys-0071 [83]

Answer:

1.57 units


Step-by-step explanation:

The formula for arc length is given as:

Arc Length = \frac{\theta}{360}*2\pi r

Now,

  • Arc length of BD = \frac{45}{360}*2(3.14)(6)=4.71
  • Arc length of CE = \frac{45}{360}*2(3.14)(8)=6.28

The difference in CE and BD is 6.28-4.71=1.57

Second answer choice is right.


***** <u><em>CE falls in the larger circle whose radius is AB + BC = 6+2=8</em></u>

<u><em>BD falls in the smaller circle whose radius is AB=6</em></u>


5 0
3 years ago
David uses 1/4 cups of apple juice for every 1/2 cup of carrot juice to make a fruit drink. Enter the number of cups of apple ju
ivanzaharov [21]

Answer:

1/2 cups of apple juice David used for 1 cup of carrot juice

Step-by-step explanation:

David uses 1/4 cups of apple juice for every 1/2 cup of carrot juice to make a fruit drink.

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because \frac{1}{2}  + \frac{1}{2} = \frac{2}{2} =1

For each 1/2 cups of carrot juice David used 1/4 cups of apple juice

For 1 cup of carrot juice , two 1/2 cups of carrot juice used

so two 1/4 cups of apple juice should be used for 1 cup of carrot juice

\frac{1}{4}  + \frac{1}{4} = \frac{2}{4} =\frac{1}{2}

7 0
3 years ago
How do you find the domain and range?
dedylja [7]

The Domain is always the x values and the range is alway the y values. For example (3,0) the domain is 3 and the range is 0. Hope this helps!

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Johan found that the equation –2|8 – x| – 6 = –12 had two possible solutions: x = 5 and x = –11. Which explains whether his solu
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Answer:

It should be x=11 instead of x=-11, so he is not correct because he made a sign error.

Step-by-step explanation:

I took the test

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Solve for t in terms of r,s,and u<br> U=S-r+t<br> T=
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The answer to the question

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4 years ago
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