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kykrilka [37]
2 years ago
12

Find the value of x.

Mathematics
2 answers:
bekas [8.4K]2 years ago
5 0

Answer: Option 3

Step-by-step explanation:

Firlakuza [10]2 years ago
4 0

\mathfrak{\huge{\orange{\underline{\underline{AnSwEr:-}}}}}

Actually Welcome to the concept of trigonometry.

Here, we use the Sine ratio.

Sine 60° = 21/x

===> since sin60° = √3/2

==> x = 21*2/√3

==> x = 42/√3

rationalizing we get as,

==> 42√3/3 ===> 14√3

hence, x = 14√3 units,

so finally, x = 14√3 , option C.) is correct.

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Ostrovityanka [42]

Answer:

2x - y - 3z = 0

Step-by-step explanation:

Since the set

{i, j}  = {(1,0), (0,1)}

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and F is linear, then

<em>{F(1,0), F(0,1)}  </em>

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F(1,0) = a+b = (2i-2j+k)+(i+2j+k) = 3i+2k

F(0,1) = a+c = (2i-2j+k)+(2i+j+2k) = 4i-j+3k

Now, we just have to find the equation of the plane that contains the vectors 3i+2k and 4i-j+3k

We need a normal vector which is the cross product of 3i+2k and 4i-j+3k

(3i+2k)X(4i-j+3k) = 2i-j-3k

The equation of the plane whose normal vector is 2i-j-3k and contains the point (3,0,2) (the end of the vector F(1,0)) is given by

2(x-3) -1(y-0) -3(z-2) = 0

or what is the same

2x - y - 3z = 0

3 0
3 years ago
The New York Queens Zoo celebrated the birth of a Southern pudu deer in July of 2013. The doe is a member of the world’s smalles
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The pudu weighed approximately 1 pound at birth.

Given that the New York Queens Zoo celebrated the birth of a Southern pudu deer in July of 2013 which tipped the scale of a mere 0.45 kg, to determine, given that one kilogram is approximately equal to 2.2 pounds, about how many pounds did the pudu weigh at birth, the following calculation must be performed:

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