Remember that a quadratic equation is a parabola. The equation is of the type y = Ax^2 + Bx + C
A linear equation is a straight line. The equation is of the type y = MX + N
The soluction of that system is Ax^2 + Bx + C = MX + N
=> Ax^2 + (B-M)x + (C-N) = 0
That is a quadratic equation.
A quadratic equation may have 0, 1 or 2 real solutions. Those are all the possibilitis.
So you must select 0, 1 and 2.
You can also get to that conclusion if you draw a parabola and figure out now many point of it you can intersect with a straight line.
You will realize that depending of the straight line position it can intersect the parabola in none point, or one point or two points.
Answer:
There are three basic trigonometric ratios: sine , cosine , and tangent .
Step-by-step explanation:
It will be 3a+ 4b^2 =50 that’s what I get at least
Step-by-step explanation:
A fence for a rectangular garden with one side against an existing wall is constructed by using 60 feet of fencing.
Perimeter of rectangle (3 sides)= 60 feet
Let 'x' be the width of the wall
Formula for the area of the rectangle is
Replace the length we got using perimeter
To find out the maximum are we take derivative
find out second derivative to check whether x=15 is maximum
second derivative is negative
So, Maximum area at x=15
To find maximum area we plug in 15 for x in A(x)
So, maximum area is 225 square feet
