The answer to this question is -154
Answer:
C
Step-by-step explanation:
Oblique. The other three are used to describe a polyhedron. They are related by the following formula
V + F - E = 2.
Where
- V = number of vertexes
- F = the number of faces
- E = edges
For example consider a common cube, like a sugar cube.
It has 6 faces (f)
It has 8 vertexes (V)
It has 12 edges. E
6 + 8 - 12 = 14 - 12 = 2
Answer:
A.6.2i-4.2 j
Step-by-step explanation:
We are given that
We have to find the projection of w on to u.
The project of vector a on b
=
Using the formula
The projection of w on to u
The projection of w on to u=6.2i-4.2j
Hence, option A is true.
It would be 15 because the way you would set it up is equal to 180 because they are opposite and they have to add up to 180 in order for the whole shape to be 360. so 3x+9x=180 and then 12x=180 and divide 180 by 12 which is 15 and you can also plug in 15 to check
Answer:
(4, 5)
Step-by-step explanation:
y = 2x - 3
y = 7 - 0.5x
y is already isolated on both equations, set them equal to each other:
2x - 3 = 7 - 0.5x
add 3 to both sides:
2x = 10 - 0.5x
add 0.5x to both sides:
2.5x = 10
divide by 2.5:
x = 4
plug in 4 for x on either equation and solve for y:
y = 2(4) - 3
y = 8 - 3
y = 5
(4, 5)
