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madreJ [45]
3 years ago
15

Can someone help me with this please ?

Mathematics
1 answer:
d1i1m1o1n [39]3 years ago
6 0

If the triangle is a right triangle, then

       (3x)² + x² = (10)² .

         9x² + x² = 100

             10x²  = 100

                 x²  =  10

                 x  =  √10  =  approx. 3.1622...

If ' x ' is <em>anything less than √10</em> , then the short sides are too short
to make a right angle at the top, and the angle where they meet
is obtuse.

' x ' has to be greater than  2.5 ... otherwise the two short sides
can't stretch far enough to reach both ends of the long side (10) .

So, if    2.5  <  x  <  √10 , then there is a triangle, and it's obtuse.


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Please simplify will give brainliyest
dimulka [17.4K]

   

\displaystyle\bf\\-\sqrt{m^4n^7}=\\\\=-\sqrt{m^{2\times2}\times n^{3\times2+1}}=\\\\=-\sqrt{m^{2\times2}\times n^{3\times2}\times n}}=\\\\=-\sqrt{\Big(m^2\Big)^2\times \Big(n^3\Big)^2\times n}}=\\\\=-\sqrt{\Big(m^2\times n^3\Big)^2\times n}}=\\\\=\boxed{\bf-m^2n^3\sqrt{n}}

 

4 0
3 years ago
In order to safely land, the angle that a plane approaches the runway should be no more than 15°. A plane is approaching Ottawa
belka [17]

9514 1404 393

Answer:

  9.5°, yes

Step-by-step explanation:

The relevant trig relation is ...

  Tan = Opposite/Adjacent

The distance opposite the angle of elevation is the plane's height, 500 m. The distance adjacent to the angle of elevation is the horizontal distance to the plane, 3 km = 3000 m. Then the angle is found from ...

  tan(α) = 500/3000 = 1/6

  α = arctan(1/6) ≈ 9.46°

The plane is approaching at an angle of 9.46°. It is safe to land, since that angle is less than 15°.

_____

<em>Additional comment</em>

The usual descent angle for most commercial air traffic is 3°. Some airport geography demands it be different (steeper). A higher descent angle can put undue stress on the landing gear.

5 0
3 years ago
Find the radian measure of the angle with the given degree measure. Round your answer to three decimal places.
kaheart [24]

Answer:

-0.663

Step-by-step explanation:

-38/180 × pi = -0.6632251158

3 0
3 years ago
Read 2 more answers
Please help!!!
kifflom [539]

Answer: If I am correct, I do believe that A is equal to F, meaning that the angle of A, which is 100°, is also the angle of F.

Step-by-step explanation:

Sorry if I am wrong I'm new at this.

8 0
2 years ago
Read 2 more answers
Please explain how do you get the answer. Also tell me am I correct or wrong.
Zigmanuir [339]
Your doing everything correctly 
3 0
3 years ago
Read 2 more answers
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