Instanteous speed is what it is
We have 112.5 = 225/2; cos112.5 < 0 because 90 < 112.5 < 180;
cos 112.5 = cos(225/2);
We use the trigonometric formula: cos(x/2) = -

;
Then, cos(225/2) = -

;
We have the formula: cos(270 - x) = -sinx (because cos(a-b) = cosacosb + sinasinb);
Then, cos225 = cos(270-45) = -sin45 = -

Finally, cos112.5 = -
Answer:
x=-6
Step-by-step explanation:
5x-x-6=6(2x+7)
4x-6=<em>6(2x+7)</em>
4x-6=<em>12x+</em><em>42</em>
-8x=48 |:(-8)
x=-6
Answer: The domain is all real numbers
I can't say that the y intercept is 3 because when you distribute,

It seems like the y intercept is 24.
Answer:
P = 69!
Step-by-step explanation:
23+17+29 = 69 :)