Answer:
(a.a)-(b.b)=|a|²-|b|²=0
As the dot product of the diagonals is 0, the diagonals must be perpendicular.
Step-by-step explanation:
- All the sides are equal in lengths and the sides that are opposite to each other and parallel so it can be expressed as the same vectors.
- These diagonals can be expressed by equation a+b and a-b
- Take the dot product of the diagonals and simplify.
(a+b).(a-b)=(a.a)-(b.b)
4. A vector dotted with itself is its length squared, and we know that the
side lengths are equal to each other.
(a.a)-(b.b)=|a|²-|b|²=0
For the second case, the amount that Javier needs to meet his expenses is the product of the number of males, Y, and the cost of each men's shoe. This is given by,
($50)Y = $2500
The value of Y is 50. Therefore, there needs to be 50 men customers for Javier to breakeven with his expenses.
1 hour!!!!!!!!!!! Well the full amount a turkey needs to cook is 15minutes per pound
Answer:
The remainder is 2.
Step-by-step explanation:
Answer:
y= 4x+1
Step-by-step explanation:
y = mx + b
The b is the y-intercept, so to find it you just need to find where the line is on the y-axis when x is zero
The slope is just rise over run (y2-y1/x2-x1), so the graph in the picture shows us that the line goes up 4 to go over 1. Therefore the slope is 4/1 which is equal to 4.