It can be either B. 11 or C. -11
<span>Here's the official formula:
If you have two points :
L(a,b) and M(c,d)
slope=(d-b)/(c-a)
We have:
M(20,22) and L(12,6)
slope=(22-6)/(20-12)=16/8=2</span>
Answer:
20 : 30
x : 7200
∴(20*7200)/30=4800
Step-by-step explanation:
20 pencils is to 30 seconds so x is to 7200(2 hours is seconds) then cross multiply and lastly divide 144000 by 30 to get the answer
R = 3 so d = 2r = 2 x 3 = 6
C = pi d,
semi-circle C= 1/2 pi d = 1/2 (3.14)(6) = 9.42
P of rectangle = 2(4+6) = 2(10) = 20
so P of figure = 20 + 9.42 = 29.42 m
answer
29.42 m