Answer:
Step-by-step explanation:
We are given the vertices of triangle ABC. We need to find the length of median AD.
Please see the attachment for figure.
D is mid point of BC because median bisect the opposite side of triangle.
Using the formula of mid point. we get coodrinate of D
D is mid point of B(1,5) and C(-3,-1)
AD is median of triangle ABC. Now we find length of median AD using distance formula of two coordinate.
A(5,1) and D(-1,2)
Thus,
ANSWER: 1cm=15 km
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Answer:
264ft^2
Step-by-step explanation:
First find the area of the body of the house which is the rectangle.
18*12=216
Then find the are of the triangle or roof given by 1/2(b)(h)
1/2(12)(10)=60
Then Find the area of the window which is 3*4=12 and subtract 12 from 60 to find the area of the roof with the window.=48
Add 48 the roof and 216 the rectangle to get total painted area. =264 ft^2
This is the the concept of trigonometry, to get the sine value of the the function given we shall proceed as follows;
Using Pythagorean theorem, the hypotenuse of the triangle will be found as follows;
The side length will be 8 units since the y-coordinate is -8
The side width will be 3 units since the x- coordinate is 3
c^2=a^2+b^2
c^2=(3)^2+(-8)^2
c^2=9+64
c^2=73
c=sqrt(73)
Therefore the sine value will be:
sin x=3/sqrt(73)
multiply both numerator and denominator by sqrt(73) we get:
sin x=(3√73)/73
Therefore the answer is A]
If I understood this correct
43a^2/36b^7