<h3>f(3)=8</h3>
Answer:
Solution given:
f(x)=ax^4-bx^2+x+5 and
f(-3)=2
f(-3)=a(-3)^4-b(-3)^2+(-3)+5
2=81a-9b-3+5
2=81a-9b+2
subtracting both side by 2 and adding 9b
2-2+9b=81a-9b+9b+2-2
9b=81a
now
f(3)=a(3)^(4)-b(3)^(2)+3+5
f(3)=81a-9b+8
substituting value of 81a
f(3)=9b-9b+8
f(3)=8
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
Answer:
359
Step-by-step explanation:
brainiest?
A <span> regular </span>icosahedron<span> is a 3D convex polyhedron with 20 faces, 30 edges and 12 vertices while a regular octahedron has 8 faces. A tetrahedron has 4 faces and is shaped like a pyramid. All of these have triangular bases. A regular hexahedron has six faces and a base of a square</span>