Given:
The number of seats in the first row is <em>a</em>₁ = 12.
The series of the increasing number of seats is 12, 14, 16......
The objective is to find the total number of seats in the first 12 rows.
Explanation:
The difference between the number of seats in each row can be calculated by the difference between the successive terms of the series.
The number of rows to be calculated is <em>n</em> = 12.
To find the number of seats:
The number of seats presents in the first 12 rows can be calculated as,
On plugging the obtained values in the above equation,
Hence, the total number of seats in the first 12 rows is 276.
The formula for the discriminant is the square root of b^2 - 4ac
8x^2+18x-5= 0
a = 8, b=18, c= -5
Square root of 324 +160
Square root of 484 = 22 The discriminant is 22
1 feet = 12 inches
3.5 feet = x inches
Cross multiply
12(3.5) = 1x
x = 42 inches
This mean for every 2 boys there are 3 girls 12 divided by 2 is 6 so you have todo 6*3 which is 18
<u>0.</u><u>3</u><u>7</u><u>5</u>
Answer:
Solution given:
For 1st box.
probability of not getting blue is:2/4=1/2
For second box
probability of not getting blue is:1/4
total probability=½*¼=0.375