Answer:
Step-by-step explanation:
3x^2+kx+12=0
k= -3x-12/x
Polar coordinates are written as the distance of the point to the origin and its angle of elevation around the unit cirlce.
Draw a right triangle with an angle of

and a hypotenuse with a length of 5.
You can use trigonometric ratios to find the legs of this triangle, which are the x and y coordinates of the point.

As for y...

Answer:
D
Step-by-step explanation:
36 pages divided by 4
Answer:
B. $42.60.
Step-by-step explanation:
On the first day price is 43.85 + 2.70 = $46.55
second day price is 46.55 + 2.70 = $49.25
For the next 2 days it goes down $1.10 so the price is $49.25 - 2.20=$47.05
On the last day it loses $4.45 so the final price is $47.05-4.45 = $42.60.
Answer:
Step-by-step explanation:
m<ABC=90 because of Angle inscribed in Semicircle Theorem