Answer:
x-7 represents x moved 7 units to the left.
Step-by-step explanation:
The translation: (x, y) → (x - 7, y - 4) was performed on a triangle
x is translated into x-7. 7 is subtracted from x . It means x is moved 7 units to the left
y is translated into y-4. 4 is subtracted from y. It means y is moved 4 units down.
So x-7 represents x moved 7 units to the left.
A= 1/360 pi r ^2
A= 252/360 pi 10^2
A= 70pi
Answer:
8 Apples
Step-by-step explanation:
You have ten dollars, and a fee of 1.25 per apple to buy,
to find the total number of apples oliva can buy, you divide the total allowance by the cost per apple
in this case,
10.00/1.25
and you get a solution of 8 Apples.
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