Answer:
196
Step-by-step explanation:
1+2+3+4+......+25+26+27 = (1+27) + (3+25) + (5+23)+(7+21) + (9+19) + (11+17) + (13+15)
= 28 x 7 = 196
It's like area of trapezoid of bases: 1, 27 and height of 14
Answer:
Number of of tiles will be
.
Step-by-step explanation:
Given:
let 'x' represent the length of the room.
Width is 12 feet wider than its length.
Width = 
Area of tiles = 
We need to find number of tile along the inside of the room.
First we will find Area of room.
Area of room will be equal to length times width.
framing in equation form we get;
Area of room =
sq. ft.
Now Number of Tiles will be equal to Area of room divided by Area of tile.
framing in equation form we get;
Number of Tiles = 
Hence Number of of tiles will be
.
Answer:
Step-by-step explanation:
The slope of line AB is

The slope of line CD is

Since the slopes multiply to
, these lines are perpendicular to one another.
Prob of tails times prob of rolling more than 3
0.5 × 0.5 = 0.25
25%
Answer:0.6
Step-by-step explanation: