Because v1 x v2 + v2 x (-v1) = v1 x v2 - v2 x v1 = v1 x v2 - v1 x v2 = 0, vector (v1,v2) is orthogonal to (v2,-v1);
Let (a,b) be an unit vector orthogonal to (9,40);
So, a^2 + b^2 = 1 and a x 9 + b x 40 = 0;
Then, a = - 40 x b / 9;
Finally, 160 x b^2 / 81 + b^2 = 1;
160 x b^2 + 81 x b^2 = 81;
241 x b^2 = 81;
b^2 = 81 / 241;
b = + or - 9/
a = + or - 40/
We have (+40/
;9/
) and (-40/
;-9/
);
Answer:
lemon easy peasy lemon Squeezy
Step-by-step explanation:
my lucky charmer lucky charm and surreal is here 2 + 2 is for your mum was gonna work for phone no no no no no 4 + 4 is 8 disgusting
Answer: option d.
Step-by-step explanation:
To create a table of five ordered pairs that satisfy the equation, you need to give values to the variable "x" and substitute these into the function to find the corresponding value of "y":
For 
For 
For 
For 
For 
Then, you can make the table:
<em><u>x</u></em><u> </u><u>-2 -1 0 1 2</u>
<em><u>y </u></em><u> </u><u>9 7 5 3 1</u>
To find the x-intercept, substitute 
into the function and solve for "x". Then:
This is: (
, 0)
To find the y-intercept, substitute into the function and solve for "y". Then:
This is: (0,5)
In USA the average I.Q. is 98 while the top one average I.Q. country is Hong Kong.
But the I.Q. distribution is given by a polinomial graph, few people with extremely low I.Q. 40~70, a lot between 70~100, some between 100~120, few between 120~140 and extremely low 140+
