Answer:
see explanation
Step-by-step explanation:
Given that y is inversely proportional to x then the equation relating them is
y =
← k is the constant of proportionality
To find k use the condition that y = 7, x = 9
k = yx = 7 × 9 = 63, thus
y =
← equation of proportion
When x = 21, then
y =
= 3
Answer:
0.66(1.1 ^n -1)
Step-by-step explanation:
They are in GP!
S = (6.6)(1.1 ^n -1)÷(0.1)
So we have -23 degrees to start
Then add 5 to it
It becomes -23+5=-18
Now subtract 7 from that so -18-7=-25 degrees
Hope this helps
92
Because similar triangles has congruent corresponding angle measures