Answer:
options?.................
Answer:
-2/5
Step-by-step explanation:
slope = (y2-y1)/(x2-x1)
= ( 3-9)/(0+15)
= -6/15
= -2/5
Figure 1
Perimeter
3 * (1/2) * (6π) + (1/2) * (18π) = 18π cm
Area
3 * (1/2) * ((3 ^ 2) π) + (1/2) * ((9) ^ 2π) = 54π cm ^ 2
Figure 2
Perimeter
6 * (1/2) * (4π) + 2 * (4) = (12π + 8) cm
Area
3 * (4 * 4) = 48 cm ^ 2
Figure 3
Perimeter
2 * (1/2) * (6π) + (1/2) * (12π) + 2 * (6) = (12π + 12) cm
Area
2 * (6 * 6) + (1/2) * ((6) ^ 2π) = (18π + 72) cm ^ 2
we can change cos to sin by saying cosx=sin(90-x)
now we drop sin and make the angles equal (nothing needs to be added or subtracted since its in the first quadrant)
90-x=20+x+k.360.......kEZ (k is an element of set of integers) (we say k.360 if it's cos and sin and k.180 if it's tan)
-x-x=20-90+k.360........kEZ
-2x=-70+k.360.........kEZ
divide all terms by -2
x=35-k.180.......kEZ
Reread the question understand what it is asking put a box around the key words underlined the stuff that help you get your answer then go back and check your work put your paragraph and page number that means where you got it from how did you get it if you got it from the map put mapan understand what is the question is asking youI was you I would probably cross the ones that don't make sense to do these things in order to