What exactly is your question?
The absolute value of x is greater than 1/2, meaning that x is either greater than 1/2 or x is less than -1/2 (in this case, even though the numbers are decreasing or getting more negative, their absolute values are greater than 1/2). this is all i can tell you because you didnt give me any graphs.
Answer:
s= 15 (nearest integer), 14.8 (to nearest 10ths)
Step-by-step explanation:
here you need to apply the cosine rule,

substituting the values,
u= 13, t=5 and angle S as 60 and solving will give you the answer 14.76 (2 dp)
Answer:
5(25 + z)
Step-by-step explanation:
(100+4z)20 can be reduced, since 4 divides evenly into 100, 4 and 20:
(25 + z)(5), or 5(25 + z).
This result can be left as is, or rewritten as 125 + 5z.