Let t represent "total price." Then 0.20t = $1600, and t = $1600/0.20 =
$8000 (answer)
In three dimensions, the cross product of two vectors is defined as shown below

Then, solving the determinant

In our case,

Where we used the formula for AxB to calculate ixj.
Finally,

Thus, (i+j)x(ixj)=i-j
12.25m^2 because you’re finding area
A=l•W
A=3.5•3.5
A=12.25
Answer:
A. Line a and line b
Step-by-step explanation:
Answer:

Step-by-step explanation:
1. Regroup terms.

2. Add 1 to both sides.

3. Simplify 3x + 3 + 1 to 3x + 4.

4. Subtrect 3x from both sides.

5. Simplify 4x - 3x to x.

Therefor, the answer is, x = 4.