Leslie made a paperweight in the shape of a square pyramid with
measurements shown in the
drawing below. She plans to use
gold paint to cover the total surface
area of the paperweight.
3 in.
2.6 in.
3 in.
3 in.
Which is closest to the total
surface area that Leslie will
paint?
А
16 in.2
25 in.2
с
D
45 in.2
117 in.2
B

9514 1404 393

  B.  25 in^2

Step-by-step explanation:

The total surface area is the area of the square base plus the area of the four triangular faces. Each face has an area of ...

  A = 1/2bh = 1/2(3 in)(2.6 in) = 3.9 in²

The area of the square base is ...

  A = s² = (3 in)² = 9 in²

Then the total surface area is ...

  base area + 4 × face area

  9 in² +4(3.9 in²) = 24.6 in² ≈ 25 in²

understand that i don't know the answers

will someone answer his question

solution:

the given function is ,

      =

the three roots of this quadratic function is , 0 ,8 and 10.all the roots are real and rational.

if a quadratic equation is of the form ,

sum of the roots = a + b +c= 0+8+10=18=  

product of roots taken two at a time = a b + b c+ c a = 0+80+0=80 =  

product of roots = a b c = 0=  

there are 11 doors in a hall starting from 0 to 11.the entry in the hall is permitted through gate number 0 and exit is allowed through only gate number 8 and 10.so, three roots(0,8,10) of quadratic function is given by entry and exit route of this hall.