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tiny-mole [99]
3 years ago
6

Simplify this expression; 1/2s - t + 3s - 1/4 t​

Mathematics
1 answer:
Svetach [21]3 years ago
7 0

Answer:

14s-5t/4

Step-by-step explanation:

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In a 30 degree, 60 degree, 90 degree triangle shortest side is 15. Find the lengths of the other sides. Will give brainliest for
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Answer:

The ratio of sides in a 30-60-90 triangle is 1:√3:2. Since the shortest side is the 1 in this case the other lengths are 15√3 and 30.

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Lim x tanx/ 1-cosx<br> x―&gt;0<br><br> please help... ...?
lakkis [162]
Note that 1 - cos(x) = 2sin²(x/2) 

⇒ lim x→0 xtan(x)/ [1 - cos(x)] = 

= lim x→0 xtan(x) / 2sin²(x/2) = 

= lim x→0 1/2 xtan(x) / [sin²(x/2) / (x/2)² * (x/2)²] 


Also, we know that lim x→0 sin(x)/x = lim x→0 tan(x)/x = 1 

So the limit is : 

= 1/2 lim x→0 xtan(x) / (x²/4) = 

= 1/2 lim x→0 4/x² * xtan(x) = 

= 2 lim x→0 tan(x)/x = 

<span>= 2.


I hope my answer has come to your help. Thank you for posting your question here in Brainly. We hope to answer more of your questions and inquiries soon. Have a nice day ahead!
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8 0
4 years ago
8 ÷ (-2) = <br><br>-2 × (-3) =​
Vinvika [58]
Top answer is -4 because when you divide by a negative your answer will come out negative and bottom answer is 6 because when you multiply two negatives it turns into a positive
3 0
3 years ago
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When is it logical to use 22/7 instead of 3.14 for pi
Aloiza [94]
22/7 is pie just in fraction form which makes it very logical depending on the problem.
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anyanavicka [17]

Answer:

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The functions f(x) = (x + 1)2 − 2 and g(x) = −(x − 2)2 + 1 have been rewritten using the completing-the-square method. Apply your knowledge of functions

Step-by-step explanation:

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