% is the correct percentage conversion for 2/5
2 answers:
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Answer:
B. 1.4 feet
Step-by-step explanation:
Let, the amount of increase be 'x' ft.
Since, the length and width of the canvas are 4 ft and 3 ft respectively.
Thus, area of the canvas, = length × breadth = 4 × 3 = 12 ft²
Since, the area of display model is twice the area of the canvas. We have,
= 2 ×
i.e. = 2 × 12
i.e. = 24 ft².
As, the length and width of the canvas are increased by 'x'.
The, length and width of the display model are (x+4) ft and (x+3) ft.
So, we get,
= length × breadth = (x+4) × (x+3) =
Since, = 24 ft²
i.e. = 24
i.e.
Solving the quadratic equation, we get,
i.e. x = -8.4 and x= 1.4
Since, the value of x cannot be negative.
Thus, x = 1.4 feet.
The zeros of the polynomial function: f(x) = x^3 – 5x^2 -6x is -1, 0, 6.
<u>Solution:</u>
Given, polynomial equation is
We have to find the zeroes of the given polynomial.
So, let us equate it with 0.
Hence, the roots of the given polynomial are -1, 0, 6.