Let's define the vectors:
U = (4.4)
V = (3.1)
The projection of U into V is proportional to V
The way to calculate it is the following:
Proy v U = [(U.V) / | V | ^ 2] V
Where U.V is the point product of the vectors, | V | ^ 2 is the magnitude of the vector V squared and all that operation by V which is the vector.
We have then:
U.V Product:
U.V = (4,4) * (3,1)
U.V = 4 * 3 + 4 * 1
U.V = 12 + 4
U.V = 16
Magnitude of vector V:
lVl = root ((3) ^ 2 + (1) ^ 2)
lVl = root (9 + 1)
lVl = root (10)
Substituting in the formula we have:
Proy v U = [(16) / (root (10)) ^ 2] (3, 1)
Proy v U = [16/10] (3, 1)
Proy v U = [1.6] (3, 1)
Proy v U = [1.6] (3, 1)
Proy v U = (4.8, 1.6)
Answer:
the projection of (4,4) onto (3,1) is:
Proy v U = (4.8, 1.6)
Answer: y=-3/5x+3
Graph the points (0,3) and (5,0) and draw a line going through them
A, x=3
5x + 10x - 18 = 27
15x = 45
x = 3
Answer: A
Because if you calculate the number of root 15, You will get 3.87........
Calculate the root of 15 and your answer will be 3 which is A
By the way if this question will appear next time use calculator! :))
I hope your answer is correct!
Answer:
X=5/2
4(x+2)2=36
(4x+8)2=36
8x+16=36
8x=36-16
8x=20
X=20/8
X=5/2
Step-by-step explanation:
Hope this helps:)