Tickets to a concert cost $15 online and $25 at the door. One hundred more people bought their tickets at the door than online.
1 answer:
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X - the total number of pages
There are 512 pages in the novel.
There are 512 pages in the novel.
The solutions are
x = 0.01, 1.47
x = 0.01, 1.47
Answer:
Step-by-step explanation:
For the surface area we need to add up all the areas in the pyramid:
- area of the base
- area of the triangle sides (there are 4 triangles)
Area of the base:
the base is a square, and the area of a square is given by:
where is the length of the side:
, thus:
Area of the triangles:
one triangle has the area given by the formula:
where is the base of the triangle:
and is the height of the triangle:
, thus we have the following:
the expression that represents the surface area of the pyramid is:
substituting our values:
which is option B