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White raven [17]
3 years ago
12

The sail of a boat is in the shape of a right triangle. Which expression shows the height, in meters, of the sail?

Mathematics
1 answer:
kkurt [141]3 years ago
4 0

Answer: d. 2 divided by cot 40 degrees

Step-by-step explanation:  in this right triangle, we are given an angle and the adjacent side of the angle. now we have to find for the length of the opposite side. the formula that relates these 3 variables is the tan function which states that:

 

tan θ = opposite side / adjacent side

where opposite side is the height of the sail

 

substituting the values into the formula:

tan (40) = height / 2

rearranging in terms of height:

height = 2 * tan (40)

 

since tan θ = 1 / cot θ, therefore:

height = 2 / cot (40)

GIVE BRAINLIEST

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olchik [2.2K]

Answer:

B

Step-by-step explanation:

Notice that the equation shows KNO_3 going from a solid to an aqueous solution, which is dissolved. Entropy is essentially when a system becomes more disordered. Whenever we go from solid to liquid to gas, that's becoming more disordered because the molecules in the system are moving much more and in more random directions.

In addition, when we dissolve solids into water, that's another increase in entropy because we technically have a liquid component here and the molecules are now breaking apart.

So, the entropy here will increase.

Hope this helps!

3 0
4 years ago
The vertices of square RSTV have coordinates R(-1,5), S(-3,1), T(-7,3), and V(-5,7). What is the perimeter of RSTV?
kompoz [17]

The perimeter of square RSTV is: 17.88 units

Further explanation:

As the given figure is a square, all of its sides will be equal. So we have to find one side to find the perimeter.

Given

R(-1,5), S(-3,1), T(-7,3), and V(-5,7)

The distance formula will be used to find the side

d=\sqrt{(x_2-x_1)^2+(y_2-y_1)^@}

Let x be one side of square

RS=x=\sqrt{(-3-(-1))^2+(1-5)^2}\\=\sqrt{-3+1)^2+(-4)^2}\\=\sqrt(-2)^2+(-4)^2}\\=\sqrt{4+16}\\=\sqrt{20}\\=4.47

Let P be the perimeter of square

P= 4x

P=4*4.47

=17.88 units

The perimeter of square RSTV is: 17.88 units

Keywords: Perimeter, Distance Formula

Learn more about perimeter at:

  • brainly.com/question/13219835
  • brainly.com/question/1836777

#LearnwithBrainly

6 0
3 years ago
Write an equation in slope intercept form (y=mx+b) for the graph below .
jolli1 [7]

Answer:

Step-by-step explanation:

b would be 0

your slope is rise/run. up one and over three. up one and over three. so 1/3

write it as y=1/3x+0, or y=1/3x

6 0
3 years ago
Suppose f(x) =6x second power-4, what is f(-1)?
meriva

Answer:

f(-1)=6×(-1)^-4=6/(-1)^4=6/1=6

8 0
3 years ago
Read 2 more answers
Help solving this math homework
Klio2033 [76]
That’s easy work quit playing ..
4 0
4 years ago
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