Answer:
Use ur brain and a calculator
Step-by-step explanation: Install a calculator on ur laptop. Put ur thinking cap on. :) Hope this helps!
Answer:
I think it would take 6 minutes to reach temperature below 8 °C
Answer:

Step-by-step explanation:
The equation of the circle with center A=(a,b) and radius = r are:

When A=(3,-2) and radius=r=-5

Answer:
Option (2) is the answer.
Step-by-step explanation:
From the figure attached,
AB represents the length of Mr. Ray, ED represents the light post and the mirror was placed at point C.
Here AB = d = 6 feet
CD = w = 32 feet
BC = f = 9 feet
Since both the triangles ABC and EDC are similar, their corresponding sides will be in the same ratio.


h = 
h = 21.33 feet
h ≈ 21.3 feet
Therefore, height of the light post is 21.3 feet.
Option (2) is the answer.