MATHEMATICS/G12 NSC
MARCH 2021
QUESTION1
A group of workers is erecting a fence around a nature reserve. They store their tools in a shed at
the entrance to the reserve. Each day they collect their tools and erect 0,8km of new fence. They
then lock up their tools in the shed and return the next day.
1.1 If the fence takes 40 days to erect, how far would the workers have travelled in total?
(4)​

180

step-by-step explanation:

7.9m and 4.3°

step-by-step explanation:

let east be +x and north be +y, x = distance * cos θ, y = distance * sin θ  

for 3.5 south, y = -3.5  

for 8.2, x = 8.2 * cos 30 and y = 8.2 * sin 30  

for 15 west, x = -15  

total x = 8.2 * cos 30 – 15 ≈ -7.9  

total y = -3.5 + 8.2 * sin 30 = 0.6  

magnitude = [(8.2 * cos 30 – 15)^2 + 0.6^2)]^0.5  

the magnitude is approximately 7.9 m  

tan θ = y/x = 0.6/-7.9  

the angle is approximately 4.3˚ north of west

answer: i believe it is c

step-by-step explanation:

because 5+4=9 so it would be 3^9

step-by-step explanation:

its payment history because your score is mainly based on how consistent u are with your payment and if there on time. hope this : )