Answer:
ln(x)/ln(11)
Step-by-step explanation:
Answer:
C. 
Step-by-step explanation:
The standard equation of a circle, given the radius r units and center (h,k) is given by:

From the question, we have the center of the circle to be (3,1) and the radius is 2 units.
We substitute the center and radius of the circle into the equation to get:

The correct answer is C
Answer:
The surface area is 
Step-by-step explanation:
we know that
The tent is a triangular prism
see the attached figure to better understand the problem
The surface area of the triangular prism is equal to

where
B is the area of the triangular face
P is the perimeter of the triangular face
L is the length of the prism
<em>Find the area of the triangular face B</em>

<em>Find the perimeter of the triangular face P</em>

we have

substitute the values

Answer:
460 ft^2 of carpet will be replaced
Step-by-step explanation:
You need to find the area of the room and then take away the area of the six bookcases
<u>Area of the room</u>
20*20=400ft^2
35-20=15ft
(15*20)/2=150ft^2
400+150=550ft^2 total room area
<u>Area of bookcases</u>
2.5*6*6=90ft^2 total bookcase area
<u>room area - bookcase area = carpet area</u>
550-90=460ft^2