Since the area is 120 ft^2, and we know the length of the room is 15 ft, we can calculate the width.
120/15 = 8
To find the perimeter, we use the following formula
2l + 2w = P
2 (15) + 2 (8) = 46 ft
The value of b^2-4ac is known as the discriminant of a quadratic function, and can tell you how many roots exist of this function depending on what it is equal to.
Start by moving the -1 to the other side, as we need this function to equal zero.
2x^2 + 3x + 1 = 0
This is now the standard form ax^2 + bx + c = 0. Plug each value that corresponds into the discriminant equation.
b^2-4ac
(3)^2 - 4(2)(1)
9 - 8
1
The value of the discriminant is 1, meaning that two real roots exist for the function described.
Answer:
Doodoo
Step-by-step explanation:
doodoo
The first choice is substitution because G s being substituted by C
Answer:
S1548.
Step-by-step explanation:
1-7% =- 0.017 and 5.3% - 0.053.
Kevin : After 1 year he has 43,000 * 0.017 = S731.
Greg: After 1 year he has 43,000 * 0.053 = S2279
Difference = 2279 - 731 = S1548.
