Answer:
Value of a is 2
Step-by-step explanation:
Given the equation of the quadratic function represented by the graph is 
. we have to find the value of a.
As seen in the figure, parabola cuts the graph at point (2,1) implies point (2,1) is one of the solution of the given quadratic equation i.e of given parabola.
∴ Point (2,1) satisfies the given equation.
Hence, we can find the value of a by putting the value of x and y, we get
⇒ 
Hence, the value of a is 2
<span>2(2-2x)=-3x
4 - 4x = -3x
4 = -3x + 4x
-3x + 4x = 4
x = 4 ..
Hope it helps !!!</span>
The population increases by a factor 1.0167 every year so the require figure is:
103 * 1 . 0167^5 = 112 million
Let the width be x. Since the length is 30inches longer than the width, the length is 30 + x.
Area = length x width = (30 + x)(x)
i.e. (30 + x)(x) = 1800 square inches.
x + 60 = 0 or x - 30 = 0
x = -60 or x = 30
but the width cannot be a negative number, hence x = 30inches
i.e. width = 30 inches
length = 30 + 30 = 60 inches.
