F ( x ) - the number of seats in the 1st row;
s ( x ) - the number of additional seats in the next row;
An equation that predicts the number of seats in any row:
g ( x ) = f ( x ) + s ( x )
g ( x ) = 12 + 3 ( x - 1 )
The number of seats in the 30th row:
g ( 30 ) = 12 + 3 * ( 30 - 1 ) = 12+ 3 * 29 = 12 + 87 = 99 seats
Answer:
Below.
Step-by-step explanation:
A = 1/2bh for a triangle.
36 = 1/2b(12)
36 = 6b
---- ----
6 6
b = 6
Answer:
The diameter is 14π
Step-by-step explanation:
We know the area of a circle is πr^2
let 49π=πr^2
Cancel the π's, and you get 49=r^2
Take the square root and you get r=7
The diameter of a circle is 2πr.
2π(7)=14π.
Answer:
11 kittens and 12 parakeets
Step-by-step explanation:
each kitten has 4 feet while each parakeet has 2
11 x 4 = 44 (kittens)
12 x 2 = 24 (parakeets)
11 + 12 is 23 which is your 23 heads.
44 + 24 is 68 which would be your feet
