Area = 1/2 x (sum of bases) x height
18 = 1/2 x (6 + b2) x 2
b2 = 12.
Answer:
6÷ (-2) = (-3)
Step-by-step explanation:
i used a calculator
but good question
First find the slope using (y1-y2)/(x1-x2)
(-2-4)/(5+16) = -6/21 or -2/7
Then plug in one of the points into y-y=m(x-x)
y + 2 = (-2/7)(x - 5)
Distribute the slope.
y + 2 = -2x/7 + 10/7
Subtract 2
y = -2x/7 - 4/7
So the answer is A.
Answer:
5507.79 feet
Step-by-step explanation:
To find the height of the mountain, we can draw triangles as in the image attached.
Let's call the height of the mountain 'h', and the distance from the first point (31 degrees) to the mountain 'x'.
Then, we can use the tangent relation of the angles:
tan(34) = h/x
tan(31) = h/(x+1000)
tan(31) is equal to 0.6009, and tan(34) is equal to 0.6745, so:
h/x = 0.6745 -> x = h/0.6745
using this value of x in the second equation:
h/(x+1000) = 0.6009
h/(h/0.6745 + 1000) = 0.6009
h = 0.6009 * (h/0.6745 + 1000)
h = 0.8909*h + 600.9
0.1091h = 600.9
h = 600.9 / 0.1091 = 5507.79 feet