The statement " <span>y </span><span>varies directly as </span><span>x </span><span>," means that then </span><span>x </span>increases,<span>y </span><span>increases </span><span>by the same factor so we have: y/x=k
for question 1 then: 15/5=3
so the direct variation equation is y=3x
Now if x=9 you only have to replace x in your equation and you get:
y=3*9=27</span>
Answer:
22
Step-by-step explanation:
Answer:
d
Step-by-step explanation:
75 per week,
after 13 weeks, 75*13 = 975
Given that


,

,

,

Therefore, the true statement is

,
because the cosine and sine are complements.
You can draw a line to make a square and a rectangle to help find the area. The other method would be to form 2 squares and 1 rectangle.
This is probably wrong but I hope it helps!