Answer:
d
Step-by-step explanation:
Since the scale factor is 0.5, it means that you have to divide in half each side.
x= 7/2= 3.5
y= 12/2= 6
z= 6/2= 3.25
Answer:
x = 5
Step-by-step explanation:
If you are trying to find x...
2x + 22 = 4(x + 3)
2x + 22 = 4x + 12
2x - 2x + 22 = 4x - 2x + 12
22 = 2x + 12
22 -12 = 2x + 12 - 12
10 = 2x
(1/2)10 = 2x(1/2)
5 = x
Answer:
u•u = 17
u•v = 13
v•u = u•v = 17
v•u/u•u = 13/17
Step-by-step explanation:
Given 2 column matrices
u = [-1 4] and v = [7 5]
Note that when computing product, we will multiply component wise.
To compute u times u, we will take the dot product of both column matrix.
u•u = [-1 4] • [-1 4]
u•u = (-1)(-1) + (4)(4)
u•u = 1+16
u•u = 17
To compute u times v, we will take the dot product of column matrix u and column matrix v.
u•v = [-1 4] • [7 5]
u•v = (-1)(7) + (4)(5)
u•v = -7+20
u•v = 13
v•u/u•u can be gotten by simply substituting the resulting values.
v•u/u•u = 13/17
