Answer:
Siti's money = RM 430
David = RM 1,290
Farid = RM 280
Step-by-step explanation:
Let
Siti's money = x
David = 3x
Farid = x - 150
Total of their money = RM 2 000
x + 3x + (x - 150) = 2000
4x + x - 150 = 2000
5x = 2000 + 150
5x = 2,150
x = 2,150/5
x = RM 430
Siti's money = x
= RM 430
David = 3x
= 3(430)
= RM 1,290
Farid = x - 150
= 430 - 150
= RM 280
If you notice, the quarter circle has a radius of 10 feet. So you can find the circumference/perimeter by using the formula as normal (2pi*radius) to get 20*pi (2*pi*10 = 20*pi). Divide this by four (since it is a quarter circle) to get 5*pi.
You also notice that if you combine the two semicircles, you get a full circle, which means you can find the perimeter normally (which is 10*pi) 10pi+5pi = 15pi which is approximately 47.1
Answer:
.
Step-by-step explanation:
Let’s count every 4 as 2^2, and put the negative in front of the parentheses. The result would be -(2^2*2^2*2^2*2^2*2^1*2^2*2^2*2^2*2^2*2^2*2^2*2^2*2^1), or -2^(2+2+2+2+1+2+2+2+2+2+2+2+1), or -2^12, which would be -4096.