Use your calculator ........................
Answer:
1,2,4,8
Step-by-step explanation:
8/1=8
8/2=4
8/4=2
In order to solve an equation for a certain variable, you should isolate that variable on one side of the equation and leave all the other terms on the other side on the equation.
The, you solve to get the value of the variable.
The equation we have here is:
<span>18−2x=4x
First, we need to isolate the terms containing the "x" on one side of the equation. To do this, we will add 2x to both sides of the equation:
</span><span>18−2x+2x=4x+2x
18 = 6x
Now, we need to get the value of the "x". To do this, we will simply divide both sides of the equation by 6:
18/6 = 6x/6
3 = x .............> This is the solution of the equation</span>
Answer:
54.74°
Step-by-step explanation:
Draw a well labelled cube to have a better representation of the question.
A cube is 3-dimensional, therefore it will have coordinates in x,y and z axis. The diagonal of a cube is from one corner to another corner.
Assuming that cube is unit cube, we need to find n angle at one of its edges will make with the diagonal.
I choose the the diagonal and one edge with the unit vector (1,0,0) and (1,1,1).
a = (1,1,1)
b = (1,0,0)
To calculate the angle between two vectors,
a.b = |a||b|cosθ
For simplicity, calculate the dot product, and the magnitudes. Then we will substitute the values of the dot product, and the magnitudes of the vectors to solve for the angle.
Calculating the dot product
a.b = (1,1,1) . (1,0,0)
= (1 × 1) + (1 × 0) (1 × 0)
= 1
Calculating the magnitudes
1. Magnitude of (1,1,1)
2. Magnitude of (1,0,0)
Calculating the angle between the two vectors
cosθ
cosθ
cosθ
θ
θ = 54.7356°
θ ≈ 54.74°