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JulijaS [17]
3 years ago
9

Please help! Vectors and angles

Mathematics
2 answers:
BaLLatris [955]3 years ago
6 0
The velocity of the ship = 22 ∠157° = (22 cos 157°) i+  (22 sin 157°) j

The velocity of current = 5 ∠213° = (5 cos 213°) i+  (5 sin 213°) j

So, the resultant velocity = 22 ∠157° + 5 ∠213°
 = (22 cos 157°) i+  (22 sin 157°) j + (5 cos 213°) i+  (5 sin 213°) j
 = (22 cos 157° + 5 cos 213°) i + (22 sin 157° + 5 sin 213°) j
 = -24.444 i + 5.873 j
 = 25.14 ∠166.5°

The correct answer is option (1)
<span>1) 25 knots at 166.5 degree</span>








Inessa [10]3 years ago
4 0
You're right, It was A!
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The length of the base of an isosceles triangle is 38.53 inches. Each base angle is 24.65°. Find the length of each of the two e
irakobra [83]

Answer:

Step-by-step Hence  

x  2  +  x 2 = 12  2

or  2 x 2 = 144

or  x 2 = 72

i.e.  x = √ 72 = 6 √ 2 = 6 ×

1.4142

=

8.4852

Hence, length of each leg is  

8.4852

inches.

7 0
3 years ago
I do not understand plz help me
jonny [76]
First of all, you need to recognize that ∠GHE and ∠AHD are "vertical" angles, so they are equal.

Then, you need to recognize that ∠AHD and ∠AHK are complementary angles.

Then you have
.. ∠AHD +∠AHK = 90
.. ∠GHE +∠AHK = 90
.. (60 -x) +(2x -6) = 90

Now, you have a linear equation in x that is easily solved.
.. x +54 = 90 . . . . . collect terms
.. x = 36 . . . . . . . . . subtract 54 . . . . . . . . . matches selection B*


___
* except that the answer is actually 36, not 36°. The variable x is used in an expression to which the units "degrees" are attached. x is a pure number; x° is 36°.
5 0
3 years ago
Given that
storchak [24]

Step-by-step explanation:

<h3><em>Given </em></h3>

<em>p </em><em>=</em><em> </em><em>x </em><em>+</em><em> </em><em>y</em>

<em>When </em>

<em>x </em><em>=</em><em> </em><em>1</em><em>6</em><em> </em><em>,</em><em> </em><em>y </em><em>=</em><em> </em><em>8</em><em> </em><em>Then </em>

<em>p </em><em>=</em><em> </em><em>1</em><em>6</em><em> </em><em>+</em><em> </em><em>8</em><em> </em>

<em> </em><em> </em><em> </em><em>=</em><em> </em><em>2</em><em>4</em>

<em>Hope </em><em>it </em><em>will </em><em>help </em><em>:</em><em>)</em>

6 0
3 years ago
-6x - 20 = -2x + 4 - 12x
Alchen [17]
The correct answer is x=3
5 0
3 years ago
Read 2 more answers
the rectangle below has an area of 72 units give the area of the scale copy of the rectangle with a scale factor of 1/3 show wor
Anestetic [448]
The answer would be 24 because 72 divided by 3 (1/3 scale factor
4 0
4 years ago
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